Not quite sure quite what you're asking. But I think, yes it affects it, we can't hire people outside of the US and given we got no candidates we could feasibly employ, it doesn't make sense to continue posting.
He’s suggesting that when posting the same job listing in places such as LinkedIn, you still get the same people from SEA applying anyway.
The few times I’ve had LinkedIn Premium and had a look at where other applicants were from, I’d notice the majority was from SEA or Africa, even though the posting clearly required EU residency/work permit.