2.x was just like how it is now, except you could use str accessories, You couldnt meld str onto vit acc outside of crafted ones, which were basically being used into HW beginnings. So you had pretty much the exact same toxicity going on, with some tanks using str accessories. Basically we took a step 4 years backwards with their decision to make it str again, except now you cant even wear level appropriate ones. The upside is that you can meld str onto vit accessories, but even so you'll only be able to have that increase maximum be based on str6s. So while every tier of tome gear/raid gear will add more str/dex/mnd/int onto every other job, giving them higher damage/enmity, and healing power, tanks will flatline with their max increase only being str6 and whatever extra the left side gear gives. Personally, I think the real reason for this is to curb tank DPS. For now, things like enmity are fine, but eventually the scaling will get so bad they will become an issue,technically they probably could still go the majority of the expansion without changing how it is, but eventually the power creep will add up. And for the tanks, it isnt fair to have stats change every half a year like this, I mean a definite change would be welcome, Vit scaling would make more sense, but I have a rough feeling that this whole accessory thing, is not the worst to come. As far as the boost to enmity for lower level tanks, well...either 1 of 2 outcomes can occur.
1 They get rid of Tank stance, since its barely being used, jokes on everyone they officially curbed damage enough to where you wish you could swap. Considering the concern for taxing healers though this one seems unlikely.
2They keep tanking how it is, undo the enmity gains in that combo and drop Tank Stance to level 10 -15, giving tanks the ability to swap, but impossible to hold hate outside the stance, while keeping a comparable scaling damage outside of Stance.
This probably wouldnt get implemented before 5.0.
Mosy likely though, they reverse what they did with piety, and make Tenacity a main stat, either have it mix with strength or flat out replace strength, then put it on accessories