Not to sound like a dick, but i agree with the move. Monster Hunter Tri isn't going to successfully compete with Soul Silver for my attention, so moving it the hell out of Soul Silver's way increases the chances that i'll buy it. I think their other moves were wise for more objective reasons (Lost Planet 1 only sold well due to timing. It came out in January 07, when there was pretty much nothing else on the market (only notable thing i can think of is that WarioWare Smooth Moves released in US that month), and Super Street Fighter IV will do better as a value product (they need to give you a reason to buy the game again), and so should not compete with the more premium games of that timeline.
Oh, and their new Dark Void projections seem more realistic. I don't see much coming from that game.