Cheap maybe, but such a show is always going to do that with political figures. They regularly made jokes about Eric Pickles’ weight, which isn’t any more classy.
The annoying thing is that some people have deluded themselves into thinking Biden has dementia, and this joke does nothing but solidify that silliness. Somehow a dementia patient recently managed to out manoeuvre the Republicans on the debt ceiling. Doesn’t look good for them if they get outsmarted by someone allegedly senile.