Does Roy Halladay's perfect game just reinforce how much better pitchers from the American League are?

you obviously know nothing about baseball. Perfect games are not "easy" by any means. none are easier than any others. it takes skill and luck as far as defense goes. no, this proves nothing about how much better pitchers are in the american league. in fact, the national league have the best. Lince, Jimenez, Halladay, oswalt.