I honestly think, now, that the devs should punt on the issue by making it a non-issue: Just make tank damage scale on vit.

It's clear that some tanks HATE the focus on DPS while some love it and there's little way to reconcile this without disappointing the other group.
Going to vit scaling for tanks would normalize tanking to how every other job functions. New fending accessories would always be a primary damage stat upgrade. Tank DPS doesn't get hit by a nerf but tanky people get to watch their HP climb w/o the pressure to sacrifice it for damage.