Soulshatter Arrow - Usable in BGs

For those not in the know, Soulshatter Arrow is a drop from the Theater of Pain and probably my favorite item in-game as it is. It’s great to destroy entire groups of would-be contenders.

However, the item is either bugged or a massive oversight as it’s also usable in BGs. Which I found to be a persistent feature after a few attempts at using the arrow. It does just as much damage, that being half of your average level 59’s health bar, as it does in-world.

Here’s a video to get a full understanding of how broken this is. Remember, it only last 5 mins, but hilarious OP fun.
https://youtu.be/5mZFOvMEu-8