The goal was irrelevant for the bet you looked at. Had you of taken the bet it was basically 0-0 if that makes sense? Had it been 5-0 to atletico the odds would of been the same hypothetically (probably not those exact odds but I hope you get the point).
*Sorrynot 0-0 but you're losing by half a goal. So Athletic Bilbao would of been leading by half a goal. I've been drinking and hate typing but hope this has made some sense.