You're complaining that raiders somehow made the casual content more boring? The casual content became more boring because casuals put in zero effort. The raiders were the first to claim this and then lo and behold a few expansions later the casual opinion caught up and they realized that they want to actually play a fun game. Raiders are getting more content tailored to them because they actually give feedback, something casuals have not done. They just worshipped the developers and it took a shitty MSQ to change their opinion.