He didn't say it was world class he said that it's the kind of goal world class players score. He might have been just stood at the back post in your eyes with no class movement. But surely instead of moaning he just jogged there and stood still you should praise him for slyly slipping into the space at the back post where he remained unmarked to secure an easy tap in.
Also he played well. Every single person in the team played a lot more than ok. It was a fantastic performance from every player on the pitch.