This match doesn't say much about Ole, it says more about the squad. Mourinho did and said much wrong, but one thing he was absolutely spot on about is that the squad isn't good enough to challenge for top honours. What can you do with Ashley Young for example...
Ole has done brilliantly well so far, but he can only make the squad so much better than it actually is. We are a top 4 team, but not a title winning and certainly not a CL winning team. Whilst obviously I'd have loved for the Ole train to keep rolling like everyone else, this loss helps stop a potentially dangerous mindset of thinking Mourinho was a bigger problem than he actually was. We have already messed up somewhat by giving Jones a new contract.
The overall run of games coming will be a bigger indicator of where Ole is at. We need one of, if not the biggest transfer windows in our history, regardless of who is our manager come July. We also need time for coaching because we still crack under pressure when we have possession.