It's obvious where the comparisons are coming from. The OP mentioned MS having the weakest first party, drawing a parallel with the other two big players first party studios. He then mentioned that he thinks MS will be offering the "full package" now that they have expanded their first party, which opened the door for comparisons to be made.
This is an interesting business move by MS. I was wondering how they were going to enter the next generation with such a tiny first party. I figured they might try to cut more deals, enter into more early contracts, on DLC and 6-month contracts for games. That however, probably works better if you are in a commanding position and I thought it would be risky by MS to assume they will be in that position again, and wont be under more pressure from Nintendo or Sony, or both, this time around.
I would not be surprised if MS really jump after the casual crowd next gen, while keeping only a minimum of proven core IP's running to get the hardcore to jump on board. So if most of these studios were developing next gen casual Kinect games, it wouldn't surprise me at all.
As a side note: Remedy doesn't seem like a great purchase from any big publishers perspective I'd imagine. The fans love the games that's for sure, but it took them 5 years to release Max Payne, then another 5 years for Alan Wake, which sold only a fraction of what Max Payne sold. They dither, make changes to engines and game-play and it all takes too damn long.