I'm sure this is coming with Fiber. But for early stage products (technically Fiber only has three "customers" right now-KC, Austin and Provo), one of the best things you can do to encourage uptake is keep your pricing drop-dead simple. I think they are just trying to balance that simplicity with keeping it fair by not allowing commercial servers. A couple businesses taking advantage of a system that wasn't built for them could wreck the speeds for everyone, and Fiber's reputation going forward.