I think they're getting even with me for a couple of the emails I've written to them.
(Hey EM I said I was Sorry!!)
I suspect they get extremely focused on what they are doing next for the effort. They have always been a very small, tight and elite group with very little band width left for anything not in current focus. Personally I consider it a highly efficient management style.
Seriously, I'm not even sure Jerome has a secretary to open mail. Getting the test vehicles ready and other purposes have probably consumed them.
Paul's management team will probably go into culture shock when they get actual support staff as production starts.