Yes, because the reason to why we were goalless was clearly because of one player.
Costa created several chances for his teammates. He was clearly our most dangerous player in the first leg, and our joint-most dangerous player in the second leg (along with Dybi).
It takes a team effort to score goals and the rest of our team was simply not up for it in those games.
Also, Costa was deadly for Bayern against us in the Ro16 in 2015/16. Are you calling us a $#@! team?