I bet Inter supporters remember quite well what happened on May 5 2002 when they lost the title after having lost their last game playing in Rome with Lazio. If you remember Ronaldo, the brazilian, cried like a baby on that day.
Until the end anything can happen!
https://www.youtube.com/watch?v=ImBKwYqJoh4 (the video when Ronaldo broke down).
That was nearly 19 years ago, plus Juventus have won so many titles in the past 10 years as well, all of them, so Inter is not about to cry if they lose, well they may cry but it wouldn't be a shock to them, why? Because we are no longer in a league where few teams win the league in turns, we are in a league where Juventus always wins, so it is something we are used to.
However Inter looks like they are doing awesome, sure looking at other leagues we could see that teams that are at the top could lose few games and be bad. Liverpool was actually leading premier league for few weeks this season, look at where they are now, there is a chance they may not go to Europe all together, so yes Inter needs to keep winning, however they are playing awesome as well, haven't lost a game in a long while, so that is why I think it is quite possible that they may win it this year.