Every previous contender at 145 has had a win that is comparable or worse than a win over Dustin Poirier to get their title shot. Frankie Edgar hadn't even fought at the weight class before getting a title shot. In the standards set down by precedent in the division Conor has done enough to have a legitimate claim for a title shot, when you consider everybody else concerned would be a rematch. If you say he is too untested and hasn't faced a wrestler, then I would ask where were your same concerns about Chad Mendez before his last title shot? What elite striker can you point to that he beat that would say he had a shot at beating Jose Aldo?
The fact is not every aspect of every fighters game is tested before a title shot, that comes after. What a challenger has to do to get a shot is show that they are a legitimate threat to the title, either through moving up the ranks or having impressive performances. Ricardo Lamas would be a poster boy for the former and Conor Mcgregor for the later, but both are legitimate ways to get a title shot.
Jose Aldo vs Conor Mcgregor is going to be a very intriguing fight and it is a distinct possibility that Jose will lose the fight on the feet. If you believe this is going to be a blow out fight for either guy, you are sorely mistaken. It is very clear that Mcgregor hits hard and he has shown a myriad of ways in which to draw his opponent into over extending and leaving himself vulnerable. While Aldo isn't as flashy, he has the basics mastered and has made top guys look like they don't belong. However, he will need to dip into his bag of tricks against Mcgregor, since he has never faced a striker that is as good, and he does have more tricks, more leg kick setups, he just hasn't needed them. I, for one, can't wait.