SCH lacks a single target mitigation ability

[Gemina]

Sacred Soil is still viable on ST. Especially for a tank eating a heavy TB + bleed.

[Rilifane]

Sacred Soil is still viable on ST. Especially for a tank eating a heavy TB + bleed.

This.
Sacred Soil is 10% mit and a 6*100 potency regen. It's especially valuable on double tankbusters, moreso now that SE slapped a bleed on them. It costs an AF stack but you get far more for your 100 potency loss than if you'd use a plain Excog or even Lustrate. The only thing is that it needs timing (and put your tanks on a leash) so you don't lack mitigation for an aoe that absolutely needs Soil.
But the gaps between busters and aoes are either fairly short so you can catch both or so far apart that you have it up again - if you need it because no point in slapping Soil on every wet noodle aoe.
And in dungeon pulls it's a no-brainer. Just throw Soil on every pull.