I think it's reasonable to assume that Boeing has a great deal more to lose than anyone else in the decision chain. The idea that they would bet the company if

I think it's reasonable to assume that Boeing has a great deal more to lose than anyone else in the decision chain. The idea that they would bet the company if they felt there was a safety problem is extreme. If there is another crash or two they are toast. Certainly any rational business decision maker would take that into consideration as far as grounding or not an entire fleet. Given that, it's actually amazing that they don't just err on the side of caution in the off chance there is another crash even if that crash has zero to do with the plane or any defect (since it would not be known right away if that was the case). Lastly as someone in another comment made the other day not flying a 737 Max 8 means potentially flying an older plane or some other circumstance that in theory is more risky (even driving).