A trade is going to come.
Hextall has been gradually shedding veterans the last two years, he just refuses to panic like the fans, and waits until he can get some value.
Size matters, but like any other skill, it's not the be all and end all, or why Morin will make a big difference but L Schenn and Grossman are gone. Leverage matters too, Gudas and Provorov aren't huge, but they're solidly built and play bigger than their size.
It's a long season, the more minutes your checkers can play against top lines the fewer minutes your top players have to be checkers, and they can both focus on offense and play fewer minutes overall. Ideally, you not only want to make the playoffs, you want to go into them healthy and with fresh legs.
When fans blame the coach for losses and the players for wins on a winning team, I ignore the fans.