The biggest problem is that SE half-assed the fix. They obviously want tanks to wear VIT accessories. All higher-level STR accessories are restricted from being worn by tanks, so that really does seem to be the path SE is aiming for: all VIT, all the time. But then they went and left older STR accessories equipable... That was just dumb.

But just because SE wants tanks to wear all VIT doesn't mean that it's the best way to play this game. A good tank will wear enough VIT to survive whatever is thrown at them, and not a scrap more. Just as Accuracy used to be, any amount beyond what is necessary is a waste of stats. A tank who's already surviving anything the enemies throw at them has satisfied their survivability requirement. Their next priorities are enmity and DPS. There's no equipment that will directly enhance enmity, so that can't be geared for. There IS equipment that enhances DPS - and as a side benefit, enhancing DPS ALSO enhances enmity. Logically, once a tank has enough VIT, they should pile on the STR.

Arguing that you should have more of a HP cushion, just in case the healer is bad, is a terrible argument - by that logic, DPS should pile on ilvl 270 VIT gear, just in case the healer is bad. After all, a dead DPS doesn't deal any damage at all! No, all equipment decisions should be made on the assumption that your party members are competent.

As for the example in the original post, that's not an example of STR accessories being a bad thing. It is an example of a bad tank, who has not filled their survivability requirement before swapping a few pieces out for STR.