Was only effective for Blood elf in actual TBC, and seal twisting as I read it right now does not actually function in Classic WoW even with batching. (according to the forums). So with or without batching it does not really matter here because everything paladin did that was interesting like reck nukes, seal twisting, you name it, blizzard already nerfed it into the ground.
You can read here about its present state of sucking, and if this is anything to understand the way thing will be for TBC it sounds as if Seal Twisting is DoA.
https://us.forums.blizzard.com/en/wow/t/spell-batching-vs-seal-of-command-bugged-interaction/492921
From this excerpt its interesting that they batch everything and if what this fellow says is right then sounds like the batching conundrum has screwed paladin but allowed everyone else things similar to vanilla but not quite.