Sure, they probably had something even crazier in the books before they toned it down.
Still, as even you admit, the hope that they would have ignored the temptation to go for a huge window is not without reason - it will lead to some headwind in Europe.
I'm guessing the mostly U.S. crowd in this thread do not quite grasp how limiting a sedan only offering is over here.
That said, I think Model 3 will sell just fine, as long as there is little to no competition. But sounds like it could have been a better car than it will be, which is a shame.
Now, about that I-Pace...