At the moment, bookmakers estimate the probability of United winning as 1.69. That is, United is the obvious favourite, but there is also a chance of losing points - about 40% according to the bookmakers (defeat or draw). You could say that this is an underestimation of United, but still United is not in the status to be expected from them for a long unmistakable winning streak.
The thing is, most time dont follow game odds because most people believe that if bookmakers offer low odds to a club it means they favour the club and predict they're possibly winning through the odds.
But in most cases even clubs that are given higher odds have to win clubs with low odds, so using the odds to judge is a big mistake.
But the possibility of Manchester united winning crystal palace tonight is high but we should not underestimate Crystal Palace's potential in this match I speculate a draw game tonight.
If betting estimates weren't accurate (I read a study that concluded they predicted to within one percent), then it would be easy to make money just by betting on underdogs. But bookmakers very finely determine the chances of teams, so in most cases you can safely focus on the odds.
Unfortunately United lost points after drawing. I hope City will do the same today and Arsenal will become an even more clear leader.