Read that and rejoice PC players! Plus Bungie has chosen to "neither confirm or deny" Destiny for PC... Which basically means yes. (in my mind, that is) I'm actually a console fan, but since I've got a PC which is capable of playing modern games I'd rather be able to use that than buy a new console on my college budget.
Developing for it will be easier, that is true - but the problem is and will always be supporting it. With PS3, PS4, Xbox 360 and Xbox One, there are a very small number of hardware/software configurations to support (since everyone has the same hardware and the same software - forced). With PC, you still have pseudo-infinite possible hardware and software combinations. Supporting all those platforms takes a lot more in terms of resources.