The Mets probably have the best lineup in the division, still have the best pitcher in baseball, are getting Stroman and Syndergaard back, and have shored up the rest of their rotation and bullpen.
96 might be bullish, but on paper, that's a good team that can grab 90+ wins in that division.
I don’t think they have a better lineup than Atlanta because the Braves have Freeman and Acuna. Fangraphs has them at 89 wins and the Braves at 91. That seems more realistic.
https://www.fangraphs.com/depthcharts.aspx?position=Standings