Yes, the flight is about an hour. You'll have to add in time for embarking, disembarking, and some more getting to and from destinations on the ground.
I feel it is better to be at a known address on cut-down day. You never know when somebody calls about offering up a player - even on a Saturday. There's much to be said for mobile communications, but hunting down someone on the road vs. contacting a known address aren't always the same. I think that all the coaches and front office types should be on duty in the same location, with access to all information, no matter how trivial.
I didn't imply anything wrong with Ralph calling his employees on the carpet. Quite the contrary, I believe the meeting was personal in fair part. I simply question the timing.
The NFL is an entertainment business. Even in pre-season. Ralph had every reason to be angry about the poor performance(s) given to his paying customers.