Agreed, I thought the scene actually gave Kevin the perfect reason to go off the rails. He was pretty much laying it all out there for Marco, and the only response he received back was a laugh and a "Yeah I already know, you're all going down". Marco took Kevin's one chance and slapped him right in the face with it.

The best thing about Louie as an entertainer is that he wants to invite us all into his world.  He doesn't cover everything in a layer of B.S., and hates it when he's forced to do so.