I'm not exactly fond of this skill being lost. I don't see a specific reason for it not carrying over into Shadowbringers. It's a cool oGCD that's pretty much free damage.

-Damage? Just increase the potency by 100 and remove the "increased enmity" portion.
-Button bloat? More than enough has been trimmed on Paladin to still have a spot for it.

It's even mentioned in the journal entry for "The Rematch" as being an "advanced technique" that Aldis used against opponents in the Colosseum, specifically Leavold in their final match, which set off the chain of events that caused the rift between them. Is that text just going to be altered/stricken? There's no skill learned at 30 as a Gladiator in ShB.

Luckily, there ain't much else to complain about as a Paladin and it looks like it'll stay that way. (At least until our potencies suddenly get buried 6 ft under.)