The other big factor is the fact that atomic has a race department. Most freeskiers ignore this but, for example Mike Riddle rides punx, but they are not the punx you or I could buy. They are made by the race department.
This is actually the case for many big established teams, salomon, head ect, but becuase they use the same graphics most people just think they are riding the same skis which are in the shops.
Armada is limited by what they can produce so yeah makes sense that athletes who are chasing olympic gold would switch to the bigger established brands.