It was only a matter of time until this happens. The confusion between .com and .org has been one of the most annoying things while selling commercial WordPress themes as you're often dealing with customers who purchase the wrong package / product.

From that point of view this change is great. On the other hand it will be interesting to see how hosting companies will respond to this. It definitely will lead to more competition which eventually is good for end users, but probably not for all hosting companies out there.