Maia would be the first, and only, contender he's ever beat. So..., no he doesn't deserve, nor will he get, a title match if he beats Demian.
Let's say he does though. Then this could be a very tough match for Silva. Munoz is just as a strong a Wrestler (depsite what many nuthuggers will say) as Fail Sonnen, and he can actually finish with his GnP. Granted, if Silva is healthy, unlike he was in the Sonnen fight, then Munoz gets knocked out fast. Munoz has power, but not the technique to land like Fail did when he landed a few pitterpat shots to Silva's wide open jaw while standing. Basically, if Munoz can survive long enough to complete a take down and improve his position, like Fail never once has, to land some of GnP, which is actually vicious, then he cold take it.