So, using $10M/ WAR, 76.5 WAR. over 15 seasons or 5.1 WAR per year. Yea, that is not happening for that long of a time I suspect, especially for someone not known for defense.
Now, if you say $15M /WAR that makes it 3.4 WAR/ Season. That might happen.
Either way for the next 6-8 years the Mets just got much, much better. Not good.
By the time this contract ends he wont even be in the top 30 AAV if things keep going like they are. Of course the TV / Streaming contracts could significantly dry up and the Mets would be in huge trouble. Of course, the whole league would be also.