He didn't have time and was being closed down by 2 players, he turned towards Krul and one of the Benfica players had gone past him and would have blocked his view of Lima closing Krul down.
Just before he was closed down he turned himself into trouble by checking back rather than playing an out ball that was available to him. That's before we even get to your blocked view theory. A back pass from that position with that weight against a side with pacey attackers is always going to get your team into trouble, but as I said, he should never have got in a position to make that decision. Horrendous moment from him from start to finish, not just the backpass itself.