Enmity has always been just a workaround to the fact that tanks do less damage than DPS. Maintaining an existing enmity lead isn't really interesting or challenging. What is interesting is snap enmity, although that learning process involves Shadows of Meracydia eating your healers.

I will say, Snow, I find it a bit odd that you were so much against PCT having its motif system regulated more fairly, yet you seem so intent on regulating tank gameplay.

Tanks are naturally bound by encounter design, and if you want to really push tanks you just need better encounter design. That means more opportunities to position bosses, and more interesting mitigation patterns. The problem has always been that most encounters are designed from a DPS perspective, so it gets created with a fixed 'choreography' in mind. You really need to go a step further and give the tank the opportunity to figure out how to make that 'choreography' work out through careful positioning. I think the 'programmed return to center, orientate true north' is one of the worst additions to fight design.