RVP is also older, so it remains to bee seen if these two seasons will be only ones in his career or not. Still there is a huge possibility he will miss many games.
As for "accommodating" Rooney, i think it's meaningless point in general. First of all, no matter how anybody thinks of him and whether he is better than RVP or Mata, he is a very good player. Lets forget this year, but even the last year when he was not at his best he still contributed a lot. And was still one of our 3-4 top performers that season. So getting him in the team would not only benefit him, it could also benefit the team hugely, again if the whole system is fine.
Di Maria is a great example, he did okay in 12-13, but was not spectacular really. Real bought Bale and with Ronaldo already there, many have asked how would Di Maria fit in. But Ancelotti managed to devise the system where Di Maria became CM/AM drifting to the left, while Ronaldo drifted to a CF position. So was he "accommodating" Di Maria? No, i don't think so. He took a squad and thought of best system to utilize best of them. And that was beneficial for a team and the player as well. That is what i am talking about.
For example, today Dutch played a friendly with Ghana and they were set up as 3-5-2 or a 3-4-1-2 version to be exact. And their attacking trio of Snejder-Robben-RVP could have been exactly the type of system to employ Rooney, Mata and RVP.
I rather say that people are hellbent on using a certain formation or trying to force the issue "Rooney or RVP", "Rooney or Mata". Without actually thinking about the fact that the best teams are the ones that fit their best players together effectively. When Suarez was banned and Sturridge scoring people keep wondering who will Rodgers choose when both will be fit, how hard it will be for Rodgers to drop Sturridge or to fit them together. But Rodgers managed to come up with a working system that employed these two just fine, and not only them, but Coutinho/Sterling as well.