I'm sure this is part of his promotion of the sequel. But the pod hosts (mostly Will Arnett) fell all over themselves praising how great and groundbreaking the original was, and Keaton claims to love the sequel and says that it was finally time to do what they didn't want to do for so many years (mess with the legacy of the original). But that's all part of the commercial promo game, I'm sure.

Just like late night talk shows, podcasts seem pretty effective at generating interest in new music or film releases, at least for me. Many times after I listen to a podcast I will go find an old movie of the actor being interviewed or download some old or new music of an artist featured on the podcast.