Why?

Whirlpool is intended to be decentralised. If no one single party is "running" all the mixes around the world, that can't possibly be seen as all of those nodes acting with malicious intent. The more Whirlpool coordinators, the better. I have the right to break connections between inputs and outputs for privacy reasons and not exposing my balances to my friends. 

There are other coordinators, use them, make more of them, make Sparrow a Whirlpool server instead.