Breja: There's a couple problems with that analogy though. For one thing, when Batman died* it was just part of the ongoing comic, it wasn't in the long awaited, first new iteration of his adventures in almost 20 years. It's pretty easy to understand peopel are disappointed to be cheated out of their hero's promised return. Good or bad "the Teela show" just isn't what fans wanted, or what was promised.
I think this show has been marketed as the continuation/ending to the original show. I saw somewhere there's an actual He-man and the Masters of the Universe Netflix Reboot show coming somewhere in the future, but I don't remember the source, I haven't seen it anywhere else and it could very much be bullshit.
But as I mentioned before, it will take Part 2 for this show to tell who it is for, because I know and understand your point.
Breja: Second, when we meet Dick Grayson in the story that deals with the fallout of Batman's "death" we're not introduced to him acting like an immature, self-absorbed asshole and bitching at Alfred, who is mourning his adopted sons death, about how everyone was such a jerk to him. And yet that's exactly what we get from Teela - Adam's parents just learned their son (her friend!) is dead, and what does she do? Throw a hissy fit and berate everyone about lieing to her, something that at this moment shoul no longer in any way, shape or form relevant to any decent person. So instead a show about He-Man, we get a show about his sideckick, who also happens to be as likeable as a hangover.
I had an acquaintance once tell me and a couple of mutual friends who were with us how she had to go through a lot of therapy as an adult to overcome the death of her father when she was a child and how that loss made her be angry at everyone very frequently and demand the absolute best from everyone at all times throughout her life up until she got therapy. My point being that different people deal with grief in different ways, more often than we like, being angry and complete jerks with everyone, specially loved ones.
In Teela's case, she is a fictional character, sure, and maybe she could have handled the situation better, but this scene wasn't just her being a bitch at random. It was her losing two of her best friends at the same time, and discovering that everything she knew was a lie. If you take into account the later scene where she reveals that she fears not being able to be herself because she must take upon someone else's role (which is exactly what she was doing at the start being promoted to Man-at-Arms, her father's role), you understand why she was even angrier and decided to quit on the spot. A lot of the rest of the show is about her dealing with these issues and getting her shit together. As I said before, if anything, Adam is depicted as the guy who has his shit together and knows who he is and that He-man (and the Power of Greyskull) is just his responsibility, not who he is (His struggling with this is actually a plot point in an episode of the 2002 series, where he wants to prove that he can be the hero without the power of Greyskull). It's worth noting that the series also depicts Teela still thinking highly of He-man while being angry at Adam, showing that she still can't process that they're both the same person (who, as Adam points out, is him who she knows, not an immaculate super hero figure like He-man represents to her) and that she subsequently, can't see herself as Man-at-Arms without losing herself and becoming her father. Which is an even more interesting thing to see her learn/overcome when we take into account that she's supposed to become the next Sorceress of Greyskull.
I'll admit, Dick Grayson may not be the best comparison, because Batman has plenty of Robins and, being the oldest, he is the one who is more mature than the rest. I think the story dealing with Bruce being crippled and choosing Azrael as replacement instead of Dick and how Grayson dealt with that ("Why am I not good enough to heir your mantle?") would probably be a better comparison. There's a similar storyline in the first Antman movie. It's a good story trope, but Teela's a bit opposite in that she's struggling to accept the roles, instead of being eager to accept them.
Breja: I'll, admit, I didn't watch the whole thing. And I won't be watching the second part. Maybe I'm not giving it a fair shot, but this show just doesn't seem fun to me, and I'm not even a He-Man fan. I wanted a fun sword and sorcery adventure, and instead I got this Last Jedi-like grim, disilusioned sequel, all angsty and unpleasant. We would have been better off with another season of the 2002 reboot. Sure, it wasn't exactly Batman The Animated Series, but at least it was a fun show about He-Man and Skeletor.
* Or more accurately "everyone thought he died but actually it's this super long nonsense story about time travel, clones and demons"
I don't think it's as dark as it appears to be at first glance, but I'd suggest waiting for Part 2 and seeing what people talk about it before giving it a second chance. Mostly, because, as I said, this show will tell better who it is for, once Part 2 is out.
I liked The Last Jedi. But I'm 37 and I've lived through enough stuff to relate to Luke's arc about being disillusioned and faithless only to rediscover the passion and hope. And also loved the "You don't need to be an heir to a dynasty to be great, rise up to the challenge and do the right thing" message (that was ruined by The Rise of Skywalker *shrug*).