I think that part of the issue here, is the homogenization of the tank rotations. For example, back in SB we had PLD with 'maintain Goring Blade on enemy', WAR as 'the 2min meta before the 2min meta existed' (until they reworked it so you got your burst for free), and DRK was 'speed freak john madden with some MP management'. Now, every tank (thanks to DT) has 'press this button to activate burst, then this other button 3 times (4 as PLD) in a row'. It was fine when PLD introduced it with Req in 4.0, it was ok when WAR coopted it for the IR rework in 4.2, but now DRK has Delerium and GNB had/has Bloodfest (allowing 3x Burst Strike, now allowing Lionheart combo too), so all the 'rotations' can feel a bit samey
As for mitigation, the only one that truly feels 'different' to me is DRK because it's got a 15s CD on TBN instead of everyone else's 25s, TBN has an inherent risk to it (if it doesnt pop GG part of your damage), and Dark Mind is occasionally completely 'dead' as a button because the boss doesn't use Physical damage enough.
When I play Tank now it's GNB. Partially because I miss the speed of SB DRK, partially because I started the series with FF8