Based on the article he called them out after they didn’t show support for Palestine at the end of the show. The comedian also is from Belfast which explains why he has such a strong opinion on this.
I would hope that any Israeli citizen is against the genocide that their government is doing and would show support to stop people being killed. If they disagree publicly in an open place like this I’d expect them to be called out on it.
Similarly Blind Guardian’s cover of Mr Sandman