Nope, but he's a charlatan who preys upon newbies who don't know any better, and timid, middle-aged women whose horses have the upper hand and KEEP it because of this silly 'ask permission' garbage.
I'd say that those who make the claims in this quote are abysmally unfair to Pat. He's a charlatan?
Dictionary says: a person making usually showy pretenses to knowledge or ability: FRAUD, FAKER. Pat is not a horseman?
He preys upon? His whole teaching is about the human ceasing to be a predator, to either horse or human.
The age thing: program has plenty of kids, on up; there's no target group whatsoever, so your claim that he targets timid middle-aged women is bogus.
We've already discussed whether asking permission to mount is silly or just polite/relational; OP must experience what works best, between her & her horse.
OP, welcome to the horse world today: the virulent Parelli bashers, of whom there are scores, then the kool-aiders (those who willingly blind themselves to the fact that Pat & Linda, being mere mortals, have/can/may in future err/be wrong/mess up.), then those who retain their critical faculties, proceed with caution with their horses, & take from the program what's proved to work/benefit the horses, as far as their present experience shows. If you want, pm me & I'll give you the online name of someone on another board who is a sterling example of one who retains critical faculties yet uses Parelli as foundation program, to great success.