Not counting the obvious blackmail aspect of the Two Pence Sultan's demand, the whole idea is stupid.

EU and NATO are separate organizations with separate structures. While most of EU are NATO members, NATO issues aren't, shouldn't and cannot be decided in EU bodies. I'd be very surprised if anyone in EU (including Sweden) would change their stance towards Turkey unless they themselves undergo fundamental changes to match the applicant criteria.

Unless Erdogan has his head totally up in his own arse, He knows this. He's probably upping the ante to later back off and make a deal on some other issue that has been too much for NATO or the US up to this point.

Ofcourse this is just my reading of the situation and I'm not an expert on Turkey or international policy. It just seems to fit Erdogan's Modus operandi.