And for a THIRD time, I'm telling you that such designs suffer with future expansion.  You box yourself in.  DIA traffic is nearly TRIPLING in it's first 50 years.  If they'd boxed themselves in with the design, they'd be in pretty big trouble trying to handle the projected 80 million passengers.  

And sorry, but having more than 2 levels in a terminal does not make it less efficient.  That just makes no sense.

Anyway, this is degrading into the usual pissing match.  I've had enough.  Have at it.