There's no way you can actually believe this. You are either:
1.) Too young of a fan to remember the Mike Dunham/Kevin Weekes years.
2.) Too naive to ignore that teams like the Golden Knights, Oilers, and hell even the Devils to some extent, would be contenders with a starting goalie like Shesterkin.
3.) Too inept at simple math to understand the difference between a league-leading save percentage like Shesterkin's .935 when compared to a league average .915, when applied over a 50 game season for starters, is a difference in 30 goals allowed. The Rangers won 22 one-goal games this season.