People seem unsure how the whole "STR Tank" came about.

There was a video of a bard tanking ifrit hard mode back in the day with full vit accessories.... It's nothing new. It's been happening since 2.0 released and it was just part of the existing game mechanics. Why do you think there are such things as Vitality materia anyway? What else could they be used for? Crafted tank accessories that are HQ already are capped on the vitality they can have. Since Vitality materia serves no other purpose all I can say is it was intended...or rather, a incidental occurrence due to this being a completely reworked game.

Well, it was a dinosaur of 1.0 I guess. Maybe people that cry "exploit" will be happy now. Personally, I think it's a nice change since won't have to spend the gil for fancy accessories like that anymore. Gearing a tank got simpler...so that's good I guess.