SEATTLE — Max Tsyplakov’s return to the lineup for the Islanders’ 4-3 win over the Canucks on Monday marked a nadir in what’s been a messy sophomore season in the NHL for the Russian winger. After being on for two goals against in the first period, and plainly looking like he lacked confidence, Tsyplakov played just two shifts in the second and zero in the third. “It’s on me,” coach Patrick Roy said afterward, falling on his sword to avoid criticizing the player. “He didn’t play a bad game.