Well also remember that again, these forums represent 5%? of the people actually playing in the 29s (and that is probably generous).
Most people are waiting to see what happens in DF where will need new guides, new ideas, new item farms etc... there will be a reason to post. Right now nothing changed other than people went to 29 could run Magisters terrace and i37 greens with terts and slots are BiS... that did not give anybody much to talk about.
Removing the levelers was not that big of a deal... so what if you had to wait 30 minutes off hours... those games sucked the worst at 20 anyway. Basically net zero.
The whole bracket will die thing if ToC gear is grandfathered is just BS as well... did anybody quit when people were running around with broken artifacts (for a year) and other busted gear for (4 months) after shadowlands prepatch came out... no.... people just took it in ass and let people who had them act hard till the gear got nerfed.
It will have to be busted to the point where you physically can't play anything but Hunter and Priest for the bracket to die off.
WoLK pvp is just nostalgic trash that will get old in a couple months except for the most hardcore wackos. It's no different than the other iterations of classic... the gold loses its luster super fast... because its like watching a movie you already know the ending to and you know exactly when the movie will end... the clock is already counting down so any investment you make dies when WoLK dies... not true for retail.