Well yeah sure it would. I honestly don't pay that much attention to awards like that so I'm not really sure who else is "in the running" but it seems like there must be more realistic candidates than them right now, and going forward. You don't (or at least shouldn't) get ROY pitching 5-1/3 3 ER or 6.0 6ER games.
There really aren't too many rookie starters in the NL this season. Martis and Zimmermann are probably the top 2 right now. The NL ROY will be a hitter, though. Probably Fowler.
