It could be but there were ways around that available to players without implementing LFD.
Did most Ulduar bosses not have engaging mechanics are something? I seem to remember people hailing Yogg+0. Actually Ulduar hardmodes attracted tons of praise.2. I guess you missed the raid design philosophy shift post-LFR. Raids went from being "Hey this is a pretty big place that doesn't really seem to serve any real purpose with a bunch of throw-away bosses just strewn around with no real rhyme or reason and then a couple of challenging bosses with real mechanics." to "Hey look this place is supposed to be a foundry and now it looks like it, it's not just reused resources, and all or most of the bosses have engaging mechanics." and there is no more "lol single room raid for six months lol."
With regard to "not serving a real purpose" are we really going to pretend that Ulduar wasn't an Old God jail, but every bit of MSV hammered down the fantasy of the raid? That's blatant nonsense and you know it.
That regular, near-scheduled PuGing, which created another layer of social fabric within servers no longer exists.3. So is the pug scene dead or is it not? What is your argument even? That you don't form guilds off of the successful pug anymore? If you want to do pug content in a guild there are guilds for that, you just have to look for them. Now instead of joining pugs from trade chat there is a dedicated tool for it, and it's very alive and very healthy, you should try it.
That's a funny way to spell "3s"4. If they removed braindead content they'd remove everything outside of Mythic.
Or we could accept that this is a multi-billion dollar company and they can put in evergreen content for casuals without costing us a raid tier?You seem to be under the impression that if LFR was removed those players that run it as their end game would have something else to do. What? Something new specifically for them? That takes resources. Where are those resources going to be pulled from? You guessed it, those same raiders that you think are having their experience diluted.