I suspect the impact will be felt more by those of us who are hard core (which would include folks spending time on the Dis boards

). For example, it very much lessens the likelihood that I would choose GF or Poly to stay or to eat (I like the walk from CR, so that's probably no change for me).
The average Disney guest/family who goes, let's say less than once a year, doesn't really know what to expect anyway. They do their best to follow the instructions given or whatever guidebook they've read (whether in date or not). Even when all transportation systems are up and running, leaving the MK after fireworks is so crazy and awful, there is no good way out, just lines. But folks still go, again and again.
We hard core Dis'ers will watch and learn, and figure out the best options for getting from A to B...and we'll adjust. And, the less than once a year guests won't really know anything is different.
Having said all of that, I think it's a total bummer.