Yes and no. I think they are still really vulnerable at the back but Vicario is SUCH an improvement over Lloris its hilarious. Also, I worry for their depth. If Son or Maddison goes down there's some major issues there. But also they've played Bretford, ManU, Burnley, Bournemouth, Sheffield, Luton and Fulham. And have Palace next week and they aren't playing in Europe. They've only played two top teams (Liverpool and Arsenal) and split those. And the Liverpool match coming down to arguably the worst display of officiating we've ever seen in recent memory.
So I think their schedule's done them a lot of favors. They still haven't played Villa, City, Newcastle, West Ham or Chelsea. So who knows. But they look MILES better than they were last season.