That's exactly what they did to PLD in 3.x after the first raid tier. A5, some of 6, 7, 8, 9, 10, and 11 all had physical tank busters to make PLD wanted.... It didn't work though. Since PLD can block magic now as well, most TBs from here on will almost certainly be magical for drk's sake. Only WAR misses out by Raw Intuition, but that's usually not a TB blocker anyway.