To be honest mate they've had another set of lucky draws. Barca are the first decent team they've played and expect will knock them out.
Lets be honest here, both the Madrid teams, Juventus and Manchester United would have knocked them out. Ajax would have stood a very good chance over two legs (albeit in a one off game you'd fancy Liverpool), PSG would knock them out too (and essentially did in the group games if you penned the scores into knock out results). They have been given rubbish like Porto to play (the weakest team in the draw by far) and a heavily depleted Bayern in the midst of a tradition.
I still expect them to win the same as us (again), nada. Which for all their championing about how great they are, and how terrible we are would be somewhat ironic.