>IMO, both Boeing and NASA are under quite a lot of pressure to not require further tests from Boeing because there are just enough Atlas Vs (the rocket that Starliner launches on) for Boeing to complete it's contractual obligations.

>Any further tests would deplete that stock.

I hear what you are saying and it likely affects their decision, but lack of hardware in the future should not be a consideration in this decision at all. If there is any concern, safety of the crew should be priority one.

IIRC, Aerojet is the sub on this system. Surely they understand propulsion well and it is unfortunate that Boeing's name is taking the hit.