The #1 selling car segment in the US is the family Sedan; same level to the ground as a wagon. Not sure where you are coming up with "US buyer demand" of "ride height/visibility" outside of your own personal preference. The data doesn't support it.
The data
does support it easily. Where do I get my data, it's not hard to find, just look at published monthly sales numbers from Ford, GM, Honda, Toyota, (even Porsche and Audi).
Just look at huge sales numbers of Escape, CRV, Rav4, Highlander, Pilot alone. Granted, Accord, Camry, and Altima sedans are #1 sellers, top of the charts, ( they are not station wagons btw ). But EVERY major automaker in US market wants a big chunk of the high growth compact-mid sized SUV market (like Mazda with its CX-5 thats greatly exceeding sales forecasts). And isn't the "tall ride height / visibility" vehicle still the top selling vehicle in US, the Ford F150. Yep in the US they demand it (crossover and SUVs) and buy it by the tens of thousands every single month. No small potatoes even if CamryAccordFusionCivicCorollaAltima SEDANS outsell them.
Notes: Over 25% of the 30 top-selling vehicles in US in 2011 were Crossovers and SUVs, a very significant #2 selling segment (not station wagons).
Speaking of VW, even the lowly Tiguan SUV outsold Sportwagon in US in 2011.
Plenty of data is available if you actually bother to look.