It wasn't publicly spoken about much from what I understand, but headsets were sent to some select developers within a month or so of the announcement. A buddy of mine was working at a company that is basically totally AR/MR focused and they had around 3 units for development purposes. Disney had to have had them even sooner because they were demoing Disney stuff right at the announcement.
I wouldn't be totally surprised if the Apollo guy was one of them. He's an ex Apple employee and Apollo got called out or at least shown in Apple keynotes multiple times before it shut down.
I feel like this isn't surprising information. Quite a lot of the rhetoric and behavior coming out of China has signaled as much pretty openly for a while now.