Maybe cuz freeskiing scene is fairly new there aren't many brands they consider to be freeski gear.
Generally yes this is the answer to the Jiberish Phenomenon. In the early days of "newschool" skiing, skiers were a largely unliked bunch. It was common to be in the terrain park, and to receive insults and snowballs from the snowboarders occupying the place.
Additionally, most of the companies in Skiing treated the "Newschool" thing like a fad. SO your average kid just getting into it would feel pretty lost and like there was a real lack of support for what they were doing.
Companies like Jiberish and Saga (Though Jiberish did it much earlier) jumped into the mix very early on. THey provided "cool" stuff for people to wear, and very much based their companies around "supporting the movement" type marketing messages.
When someone would see this kind of support they would jump on it. Then, when they would wear one of these "newschool" brands, other skiers would usually know they were "down" and a friendship would blossom - for the lame sport that both of you liked.
Fast forward and add a ton of success of newschool skiing, and you have that lingerigh support and the legacy that it leaves. The Jiberish stuff hasn't really stayed with the ultra tall movement, they have actually moved into more of a focus on stylish street wear. Its usually fairly tall, but not as obnoxious as some of the stuff like Thuggie – Why Not Apparel Inc. Home
. The newschool skiing movement still has a lot of people doing the ultra-tall gangster thing, but right now the budding trend is tight pants.
As a general rule of thumb, skiers are usually roughly around 3 years behind snowboarding trends. We also tend to be somewhat more aggressive and competition focused... my theory is that this stems from the fact that we don't have to do buckles up every run, and therefore the sport attracts a much more aggressive sort of person.
However, that is beginning to get into deep newschool ski philosophy, and that is for another time.