No, I expected a 6/10 max performance, and we got slightly less than that. He wasn't bad, I haven't said he was bad, but he wasn't good. He was mediocre. Bog standard. Average. Whatever word you want to use. 5/10.
He didn't "do well", he wasn't "good", he wasn't "bad", those are all words that are incorrect.
However, there were instances of play where he was unimpressive that are worth pointing out - his poor pass selection with the through ball to Mirallas, the shirking of responsibility with the pass to Osman, the poor choice to head a ball he should have taken on the chest, the bottling out of a 50/50 etc. If he had done something impressive, I'd be pointing those out too, but I don't think he did anything particularly "well" when he came on other than fill space.
I've lost the plot by pointing that out though!