Juve looked set to win Group H with two games to spare when Ronaldo rifled in Leonardo Bonucci's magnificent long pass just at it dropped over his shoulder, giving the Serie A leaders a thoroughly deserved lead.
Mourinho remarked: "Of course, they are strong, of course they have phenomenal players".
He said: "It made me feel at home as well, even if I play for Manchester United, they were very welcoming and I really appreciate that".
"I didn't realise it was a fantastic goal until I saw the replay", he said.
A fortnight after being outclassed by Juventus at Old Trafford, victory at the Allianz Stadium represented a lot more than just a boost to United's prospects of reaching the Champions League knockout stages.
Pogba didn't excel, but he was well received at his former club on his return to Italy.
I'm not sure whether Lukaku's absence has affected their approach, but Sánchez definitely offers something different when he plays in the striker role. United were more organised in the first half than they were at Bournemouth - it would have been hard to be that bad again - and the United manager got his substitutions right, particularly bringing on Marouane Fellaini who caused a lot of problems in the last 10 minutes.
But Ronaldo, 33, insisted there was no reason for Juve to panic after suffering their first defeat in 15 games this season.
Opposition doesn't come much tougher than Manchester City at the moment. This time Ahsley Young drove the ball into the box to a huddle of bodies in the six yard area. I can see him setting up the side defensively and trying to get something from the game.
It was a disappointing week for Juventus Women as we were beaten 3-0 by Milan on Sunday. If they can show the patience they did against Juventus then it could be a good day for his team. "And especially there is always a lot of negative comments about us but hopefully they might say something positive for once, because I think we deserve it, the team deserve it, the manager deserves it for getting this incredible result".