>>391429114
they put minimal effort into anything below expert because anyone who puts minimal effort into the game can play expert levels and there's only so many ways you can arrange 2 blocks at a time for it to be any kind of interesting
whereas expert levels allow you much more creative freedom to experiment with new ideas and require unique pathing for each section
at its root honestly it's less 'haha fuck casuals' and more 'this is boring to make and boring to play, so why bother?'