So much this. I think the vast majority of veteran tanks no longer cares who pulls in a dungeon anymore because they're all AOE facerolls anyways. But if a melee DPS wants to pull, then getting an extra use of Arms Length is quite good.

It's surprising though how many tanks subconsciously think Arms Length is only good for the knockback resistance. Personally I love the Slow debuff popping up from every mob, it reminds me of back then when Flash was still a thing. :3