They sell over 100k Outbacks per year in the US; Subaru as a whole apparently outsells VW as well (Someone else said this a while ago and I researched it... surprisingly seems to be true). So they're not as small a company as you might think. Also, as the size of the Outback grows, its potential utility increases as well, to the point where it makes more sense now than it ever did to have some sort of load-leveling option, particularly with the H6 engine. Maybe the CVT is weak, and they're worried about us 'mericans overheating the transmission (a weak spot with the previous automatic/H6), but an auxiliary transmission cooler is an easy solution for that (make it part of a tow package).Subaru is a small player in the automotive sector. BMW produces many times as many vehicles as Subaru with probably an even higher revenue discrepancy, i would expect them to have more offerings and wider availability.
I imagine the european market has some favorable conditions for it and the american market does not. Sounds like you've been keeping an eye on it, how long has it been available there - maybe Subaru will come around to test it some day here?
I would guess most Subaru owners are not going to buy it if it became an option and Subaru thinks the same thing. Americans that want carrying, vacation, and family capacity buy Ford Expeditions, not Subarus.
I like the idea, I'll play with all things Subaru and have thoroughly preferred and enjoyed their past air ride systems. I have generally owned one (or a few) at any given time with air suspension for 20 years. The ride great but they have a lot of parts to them and are testing when it comes to maintenance and reliability. Few people have the experience and familiarity for that. But i'm not surprised if it never happens in the US.
I would think they could pretty safely adapt the already-engineered Nivomat shocks for the EU to work with the increased ride height of the US car. I've had Bilstein custom-valve shocks for me in the past. It's not like it's a huge engineering feat to adapt this product to work with the US configuration.
As a company that still has a 'niche' reputation (even while striving for more mass appeal), I would think adapting the Nivomat solution to both the Outback and the Forrester would make a lot of sense. As a package, they could offer the load-leveling shocks, transmission cooler, tow bar and wiring as a $1,200 option and turn a small profit, while expanding the appeal of the car (Forrester too).