I personally feel stance dancing should be a thing since it's what brings some level of kills to tanks, tank combos aren't nesesarily hard or even close to a dps yet we don't have the healer preasure of keeping the pt alive. Stance dancing is fun and really sets a bar that if we take it out I see lot's of potential tanks switching to dps not because they only like to dps but because they don't like oversimplified mechanincs.

How to fix tank stance: IMO
-While it might take some work from the dev team and I doubt they will ever do anything like this, I think to fix tank stance we need to make aggro generation only possible with tank stance and make it harder to maintain (on bosses) that way it becomes a a choice of how much aggro we sacrifice for extra damage, build up aggro, spend some while increasing dps and back to aggro, that way it's more of a tank maagement not only on cooldowns and shuch but actually tanking make the boss notice you. ofcourse this will imply that tanks will require more skill and management will also make the devs make yet another overhaul of the system and make it more complex whichh is the opposite of their idea behind the recent changes.

Additionally They could make it so Tenasity also increases aggro generation, which since foreve I though it should've been an actual stat and not some passive ability, so now the gearing becomes a min/maxing between how much aggro/defense you want to generate vs how much damage you want to generate.

to me this is how tanking should work. unfortunately if it wasn't obvious this requires a lot of work. so so far we are stuck with the current meta witch well, it's ot so bad, a bit tooo focused on dps but is still fun.