An airplane is not something I would personally want to beta test
A few of my Mom's uncles were test pilots. They're… an odd bunch.
Move fast and break things.
If they offer free flights to places people want to go they will not have any shortage of testers.
The people they do that have a lot of experience and make a lot of money. Fortunately, most of the world doesn’t have the software business’ cavalier attitude about safety-related things being perfectly safe.