Thank God You're Here

I don't know whether this is just a problem with the latest season but most of the people in the scene (except of course the select comic) are literally reading from a script, meaning they decline most offers that the improviser makes, so there's very little actual room for improvisation and it ends up unfunny. For example, in the episode with Marty Sheargold, his character is asked for his name and he says he's Tommy. The other performers then shoot that down and say he's being silly and his name's Nathan. Like why??? It doesn't make sense. Cannot even be compared to Whose Line, which is actually great.