Don’t take this the wrong way, but you don’t speak for everyone.
I took the liberty of merely looking at the front page of the forums for you since I knew you wouldn’t (but you would still reply to me)>
Not to mention the painpoints of M+ are mostly in +2 to +8, delver territory, where people expect to know nothing about the dungeons or their spec, but still win. All of these threads, (and 2 I replied in yesterday that were deleted apparently…) are tangetially or directly linking their problems to M+ philosophy:
Delves Suck - Community / General Discussion - World of Warcraft Forums
Using delves to shove folks into mythics - Community / General Discussion - World of Warcraft Forums
What exactly do people want from delves? - Community / General Discussion - World of Warcraft Forums