It's not just about Boeing though. It is kind of expected that companies will try to cut corners. That's why there are regulators like the FAA. And in this cas

It's not just about Boeing though. It is kind of expected that companies will try to cut corners. That's why there are regulators like the FAA. And in this case, there are non-US regulators in play too. They used to just blindly trust the FAA and approve anything the FAA approved, but that has likely changed now - the FAA (rightfully) lost a lot of trust due to this. Pressuring the FAA into approving another unsafe design isn't enough anymore. I suspect that if the FAA approves but EASA doesn't, many other authorities will be heavily inclined to trust EASA on this one. Which could make the plane a "US only" plane. Maybe some close allies could be pressured into allowing it but I doubt any airline outside of North America could meaningfully integrate them into their fleet with a different type rating and a small set of countries that allow them.