No, it isn't. It's hard to be sure, because there hasn't been much powder to track up so far this year. But as far as I can see, the traffic so far has been Squaw regulars to Alpine, not vice versa.
The issue will be when a windy day that shuts Squaw and Alpine's upper mountain but leaves KT-22 open.
Even that should be mitigated next year, assuming that the rumored replacement for Hot Wheels goes in over the summer.
Agreed. Although, to be fair, both of those benefits are really two sides of the same coin. (That coin being distance from the Sierra Crest.)