Yeah, id agree with this. Im a valor 72 sin tank in full BM and noticed i was dieing faster when i was wearing my tank gear. Not extremely fast by any means but noticeably faster then before. Then again im doing a bit more damage now also. What we are seeing is everyones damage going up while our somewhat useless defensive stats remain stagnant. The more damage people are capable of, the more noticeable it will be for us tanks. Honestly if you still want to be a tank spec, untill they do something with defensive stats in pvp, your way better off gearing in dps gear or replacing mods/enhancements with dps ones. Sadly defensive stats right now are extremely lacking effectiveness in pvp.