Didn't even care about or notice the time wasting, they could've played for 900 minutes without Barcelona making creative plays. They got 11 minutes, no need to moan. There were a lot of time wasting 10 years ago, when Barcelona actually did try to force things and had a plan and were dangerous but couldn't play because the opponents wasted time every chance they got. There were 5 mins added at most back then.
Very weak to talk about either time wasting or a potential missed penalty. Problem is elsewhere.