That is to say, 4e is not a valid example for how PF or any other version of D&D would analyze the relative capacities of magical and nonmagical character abilities. Saying "well a 4e rogue can do X and Y without using wizard spells so why should a PF rogue have to pick up a wand to do X" is not accurate or pertinent.
Yep, I agree with you. Your post simply had the content that springboarded best to the point.
It is kind of like looking at American football, and then saying that a soccer player should be able to pick up the ball and run it in for a goal.