I like being able to mix in str gear as needed. But I also see the benefit in forcing us to a single setup, a str/vit hybrid fending for example.

Think about the current tuning, in order to make dps check meaningful, they need to account for a full str warrior going balls to the wall in their calculations. This eliminates all choice anyway. You need to run str, and chances are unless your dpsers can make up the slack, you will need the warriors too. If there was one set that tank could use, not only could the dps checks be better tuned around skill instead of class stacking, the amount of health of the tank would be more predictable allowing tighter tuning of tank busters to require some skill to survive it instead of stacking enough vit to survive it.

Full vit is boring, but if you are going to turn it into an illusion of choice with dps checks like they are doing now, may as well take the choice away entirely and use the predictable numbers to make their tuning even tighter.