Sorry the Crew won't roll over and play dead for you, but testing Alvarez's arm is a given for any team. The stats I saw put Alvarez just below Gary Sanchez on ability to throw out base stealers. And Turang wants the 50 SB milestone. Maybe on his next attempt he'll run backwards for you.
Your ace is struggling, plain and simple, but it's early and Montas is not known for going deep into games, so at 4-0, the game it's hardly out of reach for the Mets.