You're contradicting yourself. If "they haven't thought this through" they clearly haven't been paranoid enough but in that case they aren't overreacting, they're under-reacting. They need to transfer development out of the EU, not just out of France. That's one unexpected benefit of Brexit, btw.
I suspect they'd get told to calm down while the lawyer sends a letter to the authorities explaining what they're currently attempting to articulate via social media.
The lead developer seems to have a history of this style of communication in response to any minor critique of himself or GrapheneOS.
There is no contradiction between "being paranoid" and "not being rational".
Oh my mistake, you intentionally put "benefit" and "Brexit" in the same sentence; yes, there's absolutely a contradiction there, well done lad.
My comment wasn't an endorsement of Brexit, UK or EU. I was only thinking that if a quick change to a nearby jurisdiction was needed, the UK would be a place to consider, at least in the short term.
The UK doesn't even pretend the laws are for "child safety" they call it what it is - "snoopers charter".