You want A. Joe feels entitled for B. Then Bob wants C.
If Blizzard adds your suggestion, it will also have to add other peoples, that's the whole problem. So they either NOT add those things, or they risk ruining the whole thing.
That's not very hard to understand.
You, and every other dude joining the bandwagon, each has "their" desired QOLs. You draw the line at LFD\LFR, maybe Bob doesn't and wants that but doesn't want flying, but Joe wants Flying, but doesn't want transmog.
Then what?
Blizzard should just steer clear of all that, seriously.
And once more. BUGS AREN'T A FEATURE, holy fuck, how can you dudes keep making that argument. Bugs get fixed, be it vanilla or fucking Legion.