Yep. They've had a mobile store before, but if they wanted to bring it back why did it require candy crush, COD, etc in order to make it a reality? Why not just use some of the IP they already owned, create something and then relaunch the mobile store in their vision with that?
It just comes down to the fact that they don't want to (or maybe they know deep down that they can't) create content that's good enough to entice mobile consumers towards their store, so they want to leverage things that tens of millions of people are already happily playing via already existing tried and tested content delivery services.
If they are going to pull games from the app/play stores and then use candy crush etc as bait to try and redirect those existing customers to their own store then they deserve to fail.