They could feel like there’s nothing more to lose if it doesn’t make it back but they might be able to claw their way back if it succeeds. “They” being the individuals making the recommendation, not the individuals more concerned about the company overall. If Boeing decides the spaceflight industry isn’t worth the risks, a downsize or complete closing of that part of the company could cost the jobs of those who are the experts in this situation.

So it might not be a case of “we think it’s safe to return”. It might be “returning safely is the only scenario where we aren’t fucked, so let’s roll the dice”.