The premier league predictions by the super computers as stated by you is actually not even Looking like what can actually get to happen because looking at the performance and the current stands on the table, Liverpool is appearing with the least chance but then the AI is saying other wise and this is why you can't put total dependency on it.
Let us know that The Opta Supercomputer predictions at a certain time is not the final predictions. What happens is that the supercomputer periodically predicts the winner of the EPL through 10,000 times simulation of the season and gives predictions based on the current performance of clubs. So you wouldn't expect that the prediction that Liverpool will win the league is final because the predicted winner of the league as of September last year was Manchester City. It is based on the current position and performance of these clubs that the supercomputer gives the percentage of chances of every team. These computers basically collect relevant data, analyze them, and predict based on their findings.
I don't and would not like or want to undermine the ability of these super computers but then i still will not want to place so much dependency on them because i know for sure they are not error free just like the human tendencies always playing out in our predictions and other activities, there could be some technical lapsis that could aswell give room for possible Chances of some error although they may actually be very minimal but then it's not a very good idea to totally depend on the results and predictions of such tools and super computers because once you get used to them you begin to develop dependency on them which may one day turn out against you and you may lose much more than you can be able to bear.
There is a consensus from some of the readers that these supercomputers can only assist you in making decisions because they can analyze games within a short period and these analyses can be accurate. But these gambling tools shouldn't take the place of human judgment.