So do you want fight to be as simple as in vanilla,just so you can have ''fun'' in raids again? No thanksI think it's just a lack of enough same skilled players and not an interest problem. Finding 25people of the same skill level who will be content with eachother is a very hard task to complete on 1 realm.
Many people would like to return to bigger raids. Feels more epic and waaaaaaaaaaay better loot distribution. Organising 25m vs 10m isn't hard at all and higher hardware requirements is also easily solved.
I'm of the opinion that 25m is allready way more attractive than 10m but due to skill disparity it's just harder to make a raid but that's not something Blizzard can fix by giving more rewards.
It's Blizzard's fault because they make fights so hard basically. If the guy at the bottom of the dps wouldn't be blocking your raid from a new kill, nobody would care that he's bad.
It's what vanilla raiding was. Fill up a raid with 40people who had required FR and go have fun together not caring if someone did 500dps or 600dps.