I agree the tanks have become more similar, but regarding using all charges of the gap closing in a party buff window, we really don't know what that's going to be like yet because we don't know how the party wide buff durations will change, and they may change seeing as how they may have their cool downs reduced to 120s or less.

If the party wide buff durations shrink as a response to cooldown change, there simply may not be enough time to fit in 3 onslaughts in that party buff duration because we're going to be prioritizing ir>fc>new attack, infuriate > inner chaos, and upheaval over onslaught.

And ir is going to have charges which are spent it seems like, so it's going to be straight cleaves and nothing else during ir.

We really don't know yet.

And like I said, EVEN IF there is a dps loss for not dumping everything in the opening, it's FURTHER mitigated by the fact that there's more charges total.

And let's be honest, any dps variance from using 2 and not all 3 gap closers during the opening to align with the initial party buffs is inconsequential as the total number of gap closers used will be the same across the entire fight and any variance will be only the difference of ONE gap closer with or without party buffs.

So again, I don't think the forced choice between using a gap closer as dps or as a gap closer will be an issue in Endwalker.

It seems like the real issue you have is homogeneity amongst tanks but that's kind of a different issue. And yeah, on that front I kind of agree.