Anyone can say what they want, meanwhile Milan AC won.
In my opinion it was a good match and also a good boost of self-esteem for the team.
They needed it after the last few games ended very badly, i understand good their mood very well: when someone works hard and doesnt get results they get depressed.
Milan has always had a very good potential and they have everything to be much higher in the table, maybe the reason was precisely Fonseca, and the team needed a coach who believes in the team more and can motivate the players for each game. I see this in Conte, when he comes to a new team he is filled with energy and inspires the players with this, you can see it when you watch his matches, maybe Conceicao is just such a coach, and yes, this victory is very important for Milan.