We couldn't find an outside fitting for the front pole on the one my local dealer had. Maybe a production error? Got lost in the mass of nylon? And never rule out
Yea it is there
Regional conditions may be important, too. I've never camped in the Sierras, but I'm assuming the humidity is a lot lower than in the Ohio River valley, where nights of 80 degrees with 80% humidity are common (and the rainfly never leaves its stuff sack.) In those conditions, solid impermeable walls are not what you want around you.
I doubt we ever get 80% humidity!

I agree, I think the Scout design has potential, and I hope BA works on it some more. Put a net door on front, with a vestibule (or at least a generous beak) to protect it, and move the back pole, and they may have something great. Of course, it goes without saying (but I will) that a solo version would be even lighter. Couldnt have put it better! p .