It's actually extremely common to call screen passes against fast teams who blitz a lot. They are designed to hurt teams that overpursue and bring a ton of pressure. They didn't really work out too well, but in theory they were decent calls (blitzing defense with a lot of guys in the box).
Thank you for stating the obvious. Quick screens are also effective if you have a reciever or back that is extremely quick and can turn a 1 yard gain to a 15 yard gain by forcing a missed tackle.
I didn't see the game but it sounded like Weber took a couple of sacks to take the team out of field goal range or resulted in missed field goals. He really has to figure out how to avoid that and dump the ball in that situation.