I am also not too sure if AC Milan is going to win the league title this season because I actually think Inter has a better chance than AC Milan. The biggest benefit for Inter is going to be the match that they have in hand.
Why you are not really sure AC Milan getting the Serie A title? I even think AC Milan has a better chance to win it than Inter Milan. AC Milan can beat Inter Milan and Napoli lately, it indicates AC Milan has a better motivation to win the title this season. The point gap is only 2 points, not AC Milan leads the table. It is an advantage for AC Milan, right? In addition, you need to check the current performance of Inter Milan, it looks quite bad. They only win 1 in the last 5 matches. Not a good sign to win the title.
If we compare the performances of AC Milan and Inter, I agree with you that the last few matches of AC Milan have shown a greater motivation to win.
Even now AC Milan is in the top position with two points ahead of Inter. But we also can't underestimate Inter, because Inter in the last 5 matches have
shown a declining performance. This happened maybe because Inter were still playing in the Champions League, so Inter couldn't focus on winning
in Serie A. But after being knocked out of the Champions League, I believe Inter can improve their form in Serie A. Moreover, Inter still has one game left
to play, so Inter's chances of winning the Serie A trophy are much greater. Even so, there are still quite a lot of rounds to play, so both AC Milan and Inter
still have the same chance. Even if AC Milan and Inter aren't careful, Napoli still have a chance to reach the top, so in the end only the most consistent
team that can finish the rest of the matches in Serie A deserves to be the winner of the Serie A trophy.