I voted Pennsylvania, too. It's just hard to see a Democratic victory without PA, and I think PA is quite likely to once again vote more Republican than MI.
I could imagine a scenario where Democrats lose PA, win WI and MI, hold all of the Clinton states, and win the election by either
a)winning FL, or
b)winning AZ and winning a contingent election in the House
But both a and (especially) b seem unlikely.
Arizona and FL are still 3-5 +R states right now. If Trump wins all 3 again he is probably on his way to a bigger victory than 2016.