Pronger in 2000 was a bit of anomaly.
Jagr would have easily won MVP had he played a full season. He finished 2nd, despite missing 1/4 of the season and scored 96 points. Would have hit 120 IMO and he played the extra 19 games.
Pronger finished with. 68.28%, while Jagr finished extremely close with 68.10%. A couple votes one way or the other and 68 takes it, even with missing so many games.
The rest of the forward group wasn't overly impressive, Jagr still won the scoring title with 96 points, then you had Bure w/ 94 and Recchi w/ 91. So despite the other two playing more games, they still couldn't close the gap which I think really hurt their chances at getting any Hart votes.