Healers and Tanks are presently suffering similar issues. If you're going by the "Utility vs Damage" mantra, then there's even less reason to understand why both SCH and AST presently outperform WHM in terms of both healing AND damage considering WHM brings the least utility. I actually began my FFXIV adventure back in the day as Paladin - levelling was safe, but a total slog, and so many videos in certain parts of the game (when played from a PLD PoV) were laughable material in-so-far as people found it amusing to watch a PLD try to damage their way through content. Having said that, there is no denying their utility. Whether they are in a good place, I'll leave for others to debate, but so long as they have utility seeping from every pour, they can be forgiven for not being DPS beasts.

As a WHM main, I loathe getting DRK tanks, even if just because Holy conflicts with their kit, forcing either to be more timely for no other reason than AoE stuns are a detriment to one of their buttons. Furthermore, of all the tanks, DRK's present the biggest YoYo's for me in the majority of cases. As for Warrior - LimitGen aside - I don't understand why SiO has raised any ire, aside from it making little sense how a Warrior is contributing a barrier that can only be categorized as magic. SiO may not be the most pressed button I have across various classes, but I use that far more than I would certain other buttons - I certainly wouldn't like to see it removed 'just because', but the LimitGen aspect can go.

The damage-type aspect was a dead duck. I really don't want it to go back to the whole "Physical Tank, Magical Tank, All-Round Tank" trope as this will simply conflict on a per-fight basis. Same can be said for damage/resistance debuffs. They don't have to be outright removed, but so long as things exist where having/not-having X is a benefit/detriment over alternatives, then there will always be a grey issue overhanging said classes. On that note, it makes no sense to me why Tanks would provide such debuffs anyways. Either way, I won't pretend like I have any balance-suggestions.