Ars Magica on DriveThruRPG

I see that Ars Magica books are now available on DriveThruRPG. It's all second and third edition material at the moment, but if you want older PDFs, don't like e23, and do like DTRPG, well, the books are becoming available.

Is this a move from e23 (whom I happen to like) to DTRPG (that I'm less fond of), or more of an expansion of options?

Seems like it's all 3rd edition stuff, though.