Yeah, I think that to me is the concerning part. If prototypes are being shown around, why can't potential consumers see it? We have seen prototypes of vehicles for years before they were able to make it to market. Deliveries beginning later this year, even if just for employees, just seems really doubtful. They could really use some hype. The R2 is doing wonders for Rivian.
Getting some reservations going would also bode well for them. Interest free loans from the anxious public. Keep some hype going and distract from some current shortcomings. I'm sure they have their reasons though, hopefully they are not as concerning as they appear from the outside.