The reality is that European solidarity is not ironclad either. Is the US, or Germany, or Sweden more likely to fold and deactivate* weapon systems under nuclear blackmail?
It sounds hypothetical but seriously, what would Gripen do if tactical nukes were dropped on Estonia and Putin threatened the same on Sweden if they didn't back off? I don't know, and you don't either.
*I've not seen credible accusations this is possible, but assuming it is
Those "promises" were meaningless BS. Every European should know that the EU cannot make such promises, because it has no power in those matters. Defense policy is up to the member states, while investments and energy purchases are mostly made by private entities.
It's not a time to be playing political games buying sub-par weapons. Bad for Saab, but that's reality. The world is dangerous again.