I'm gonna take the unpopular, "hardcore" route (though I myself am getting older and thus falling back from "hardcore" status) and say I hope that Stormblood eschews mechanics that are Day 1 skippable via high dps in favor of either interesting mechanics shared among the team (maybe it wasn't a ground breaking concept, but I liked Limit Cut in A11S) and punishment/complication mechanics over instant-kill ones.

If you can't skip a mechanic, guess what you do? You LEARN how to handle it. You know, like we did in Thordan Ex. The last "hard" Extreme trial.