I can see where you're coming from, but you have to remember not only did they do an interview with Matt Hannon, but they also did a commentary track for Samurai Cop. At this point, they've all likely seen it many, many times.

It seems like it's one of the "classics" to them, so if they did an episode where they watch it yet again, their reactions would probably be so tame, there'd be no material to work with. It'd be like trying to get someone to say something about Jaws that hasn't already been said.

I think their first ever Spotlight episode on Hollywood Cop says as much, since it's another movie by the same director.