yes, clearly every single person that owns jiberish buys it for this reason, and this reason only. cmon people... its kind of sad that someone can't buy clothing that pros happen to wear without being criticized for only buying it because the pros wear it. this might sound kind of crazy, but have you ever thought that just maybe there are people that buy jiberish because they like it, and not because pros wear it?
that said, i agree with the first part of your post... if you are gonna buy jiberish, don't try to justify with said claims. no, its not gonna last you through a monsoon. yes, there are plenty of clothes you can buy that will function better for skiing than jiberish. yes, its pricey. and no, not every single person that owns jiberish bought it because pros wear it. if you like it and you've got the money, go ahead, i don't see why everyone cares so much...