Is there a way to keep tank stance on until I turn it off?

[Jeeqbit]

OP, just in case you're not aware, it does this with food as well, so try to wait until you're actually in a duty to use food so you don't accidentally lose it.

It does not happen with food. Why do you believe it happens with food?

Considering the direction of the game the devs might as well make tank stance a passive and just remove the skill while reminding tanks that shirk exists. /shrug

Sometimes the gear difference or rotation execution between tanks is so massive that shirk isn't enough, and the more geared tank gets the boss back after some time. Sometimes older bosses weren't designed for the timings that shirk comes off cooldown. Sometimes a tank death throws off the shirk timings and in order to avoiding taking the boss after a swap, you need to turn the stance off instead.

Perhaps spamming Provoke could solve that but I think it would be annoying to add this to your rotation when some tank rotations have a lot of abilities to use already. I also believe that many of my co-tanks would not usually spam provoke in this situation, causing it all to go wrong. Being able to save the situation myself by turning my stance off gives me a way to fix the situation.