How does it benefit Milan??? It's not as if both teams are gonna be awarded 0 points. The match may still be continued/resumes/replayed so we gotta stop creating any conspiracy theory.
Well the gap will just widen between the two clubs and even though they have a game in hand it will create a feeling where its too much and that will mgiht make them think they lost it...Plus it will put lots more pressure on them to make it up...Finally it will crowd Roma's schedule even more.