We have seen them start to play at their expected level in the Premier League, which has brought them some fantastic results but, as we saw, the last 16 of the Champions League is another step up in class. They also, as one video doing the rounds on Twitter shows, incorporated an Old Trafford steward into their celebrations.
"We must stop feeling fearful - people must stop being scared".
"Of course it's a reality check".
Their final league position, in particular, is what actually will define United's season and I am sure that is the way Ole will look at it too, when he decides on his priorities in the next few weeks.
"This is a top, top team that we played against".
"They were a level above us today, we have to honest and fair".
He also suggested that the injuries to Anthony Martial and Jesse Lingard affected the side's performance, but also pointed to PSG's injury problems. Substitute Alexis Sanchez struggled to impose himself up front.
He said: "I'm not being disrespectful here to Manchester United or the competition but United have far bigger priorities than the Champions League. When he plays he needs to finds himself because we know there's a quality player there".
The Red Devils have a tricky-looking fixture list before they travel to the Parc des Princes in Paris, however, with an FA Cup trip to Stamford Bridge to face Chelsea and a visit from Premier League title-chasing rivals Liverpool to come first, as well as league fixtures against Crystal Palace and Southampton. "Don't feel sorry for yourselves".
Booed and jeered by a normally magnanimous home crowd, Di Maria's speed and skill stung as he put his former employers to the sword. Kimpembe, booked early on, might have been shown a second yellow on a couple of occasions before scoring the game's opener.
PSG head coach Thomas Tuchel thought his Argentinian forward had been below par before the interval but was delighted he delivered a stunning riposte in the second half. He had a bit of a hard time because I was close to him.
"We had many midfielders and we are used to playing with more forwards so we had to adapt".
Substitute Sanchez was again anonymous and Solskjaer admitted the Chilean's lack of form was an issue.
"It's always unsafe for him from the corners and of course a superb assist, it was a ideal pass for Kylian".
I think we have to accept that United are not good enough, and move on.