I think, that in the next year or so, it will become clear if Blizzard really changed their ways or have the same "we know better" mentality which brought us the all time favorite 9.0 Covenants.
People are already voicing their concerns about various aspects of the recently announced expansion Dragonflight. It's apparent that we're far from a release, and they themselves confirmed that they are taking the "when it's ready" approach, so they have plenty of time to work on, add and/or change things.
So far, I have the impression that the most controversial opinions people have are regarding the customization of the new race. Blizzard only showed Human and Blood Elf cosmetic forms(I'm aware that there is a chance these were the only ones ready for the announcement and they indeed have a plan to add other races as well in the alpha/beta), but many people wish that there are more races added as options. This is absolutely doable for such a big company as Blizzard, especially considering that they are not racing against an already set release date. IMO, this should be the first and main clue in the following Alpha and Beta, if Blizzard really wants to listen this time around, or just conveniently ignore the wishes of the players.
Another one is people disliking the "draconic"(in-combat) form of the new race. Blizzard still has time to add more body types to it- for instance a more bulky one.
So, do you think that (not)working on these complains, among many others, could be taken as a clue to whether Blizzard has changed they approach to players feedback, as they keep claiming lately(even in the very recent announcement video)?