Niggles: One Finger Death Punch is quite addictive if a bit simplistic (maybe one of reasons it got rejected.... having said that there are plenty of worse games on GOG which are less deserving to be sold here...)
Well, they released Super Hexagon here - a (unless I missed something) 3 level, 60 second each game about making a small triangle go in circles. Can't go more simplistic than that and yet it's here.
To be honest, I don't think they even played the game. If they had, they would have released it, period. No one could be that oblivious to how awesomely fun this game is. They probably looked at some screenshots, read the product description, looked at a youtube video for 30 seconds and figured it sucks. Next, please! It probably didn't help matters that OFDP is not a roguelike pixel platformer. I'm giving them the benefit of the doubt here, because if someone actually PLAYED the thing and still gave it a thumbs down, well...