PoSSeSSeDCoW: I did read it. Most people I know prioritize saying things concisely over saying things "easily". I know the difficulty of sounds doesn't factor into my word choice.
That's not a choice you can conciously make. Or at least it's not one that most people will even think to make, let alone have the presence of mind to stick with. Speaking is such a basic and instinctive thing that you really have little control over how you do it.
PoSSeSSeDCoW: As for why gog sounds weird, maybe it's because English isn't your first language (assumption, but since you're from Denmark I think it's sound). There are many similar words in the English language (dog, cog, god, etc.), so I don't think its hard to believe that English speakers are fine with saying .og words.
Since I'm a university student studying English language, literature and culture, it's about as close to a first language as it can get.
I don't think that pronouncing it "gog" has anything to do with being a native English speaker really. It probably has more to do with being a very active internet user, and thus being used to dealing with words that aren't words, odd acronyms and abbreviations, and people who use language that is barely even a human language.
I'm not going to do a study on it, but if someone were to do one, it wouldn't surprise me if the group of people who say "gog" have a higher frequency of people who use "lol" as a word in their "real-life" (why do we think the internet isn't real?) vocabulary, than the group of people who pronounce each letter seperately.