Even though the match was very interesting, but it's still not a good result for Milan imo. Even Roma lost against Atlanta, that make their point difference with Juventus become higher with 7 points. It would make Serie A boring again if Juventus win Serie A this season.
Candreva's equalizer goal shouldn't be count, Locatelli have been fouled by Ivan Perisic but the the referee didn't made the call, a controversy goal said by Montella. I don't think that matter because in the end, it was their defense that truly failed them. Over celebrated by Inter Milan, but that is the happiness that showed they are pretty much still in the league.
better we accept the referee's decision, whatever decision the referee's decision is final and can not be contested. Inter Milan deserves appreciation, as they were able to survive this "Derby Milan" defeat.