There is no pretending that losing the first leg of a two-game series is a good thing. But the New York Red Bulls did lose their opening match of the 2016 MLS Eastern Conference semifinal against Montreal Impact. There isn't anything to be done about that except be thankful Matteo Mancosu's wonder-strike was the only goal of the game.
There are all sorts of ways in which RBNY's situation could be better, but it also could be worse. The task ahead is not insurmountable: win a home game, in a stadium in which L'Impact is yet to record a win since making the move to MLS in 2012.