After the 0:0, AC Milan is more likely to be in 2nd place in Serie A, Inter Milan has one game less and is only 2 points behind. AC Torino play defensive very hard for the 0:0, reward 1 point. I don't think they wanted to win, but they had a few good chances. Now even Juventus is getting closer and closer, they only have 6 points to catch up on 1st place, that's not much.
It's true as you said, it wasn't Milan who was lucky because Napoli was beaten by Fiorentina with a score of 2-3, but it was Inter Milan who was very lucky, because Inter still had one game left, in Week 33 Inter will face Spezia, indeed on paper Inter is more in the lead to get 3 points, because Spezia is now playing less consistently, while AC Milan will face Genoa, maybe Genoa will play a defensive game, to avoid defeat, we can be sure that Genoa this season will be relegated, because in week 32 Genoa are still in in the relegation zone, they just collected 22 points,
Can be sure Inter and AC Milan will get 3 points.