Why Shirk?

[Dzian]

I thought it was intended to help with tank swaps. Then again, I'm not playing tank much, so I dunno how useful it would be to do that.

Haven't used it yet but my initial thought was it would be awesome for tank swaps..

Tank A has hate.
Tank B vokes
Tank A skirts tank B.
Tank B now has a pretty good enmity lead.

Or alternatively give the main tank control of the swap.

Tank A has hate. Tank B vokes early.
Tank A however keeps hate eats the tank buster and then skirts tank B to transfer hate.

Seems like a pretty strong skill really