Big Pistons, the delayed action of the FAA who had to be dragged kicking and screaming to the grounding by the other regulators set the stage for the conditions of the ungrounding. The FAA is perceived as having been captured by the industry generally and Boeing in particular, hence the reticence to accept any FAA certification process as untainted.
Will politics and national interest affect future type certs? Depends on which side of the money you stand. It does not help that trade, tariffs and treaties are all currently more in play than they historically have been.
I don’t personally think that EASA is the paragon of virtue in the airworthiness/documentation/procedures game, but at least they have not had their budgets slashed to the point where they have to accept wholesale self-certification with all of its attendant irony.