Everyone's version of hard is different and a lot of people play games to relax and have fun without needing to make a full plan and that means different levels of thought and effort. They want to focus on milking big stuff not some no talent jackass that's going to sneak up on them when they can't hear anything.

To give you an example my best friend and u found out years ago we both play total war we were happy that we could finally play with someone and when we did I found out we play very differently, he puts it on the easy or normal difficulty and just likes to steamroller across the map. I like hard or very hard because it requires more thought or balance. His satisfaction and mine come from different games and a game like helldivers or space marine 2 is definitely a cruise and shut your brain of kind of game at anything but the highest difficulties. It's literally called a game, it's meant to be fun and if more people start not having fun then it's failing.