While budget restraints are probably partly to blame, I believe that most of the problems are due to the fact that Disney is trying to retrofit a former backstage area that was never designed to be seen and critiqued by the public. Inevitably there is not enough space for a full 3D perspective effect, and things like service doors, ventilation ducts, dumpsters must be accommodated.
If I understand what is being done to France, all of this is to theme an area which guests will only view for less than 30 seconds as their skyliner approaches or leaves the International gateway. They won't be wandering around this area posing for pictures so the architectural lapses and other "bad show" can be forgiven. Likewise ... is the crowd overflow corridor behind the east side of Main Street also a little bit sketchy?
Speaking of which ... that "before" picture is Marceline, MI !!!