Multi-tank busters should apply to the main tank in an alliance instead of a DPS

[Neihel]

it is not an absolute requirement to turn your stance on as an OT in Allianceso what?

it is a requirement to fill a role that you queue as unless you're okay with healers that do not heal

Because you think it's better to make the game even more casual?

For the number of times I have tanked in alliance raid, I take almost no damage even with tank buster, as long as you know how to anticipate and the healers are not sleeping, with a little bit of stuff, even with the two dead healers, you can still hold on for a good while, until the next tank buster, if the healers of the other groups are not sleeping too.

Well timed, a defensive tank CD + mitigation that all healers have, you don't take more than 20% of your Max HP.
Also, there are no mechanics to switch between tanks in Raid Alliance. So don't try to make it even easier.

The raid alliance is relatively easy content. Stop trying to change the game, but try to progress, learn to play...

you didn't even the thread at all, nobody said anything about making the game easier for tanks, I am suggesting that tanks should be more difficult as a role
I want that 20% to be a 40% if another tank in a party is dead instead of just deleting a random member in the alliance
the game can even display an indicator over the tank buster marker with the the number 2 or a + sign to indicate that one of the OTs are dead so you need stronger CDs