By tiebreakers they are first because it’s a 3+ way tie for first and at that point, division record kicks in. Not really a big deal since it’s only the quarter pole but just neat more than anything.
Also, don’t make excuse for the Falcons. They could easily be 1-3 right now and the Eagles have also been missing playmakers but for a hell of a lot longer than half a game. The Falcons are not the best team in the NFC right now even when healthy. I don’t even know if they’re the best team in the NFC South right now either outside of record.