Yeah the first time I watched I thought it was maybe like a rough cut or a mistake that their mouths weren't moving. Suffice to say, when the dialogue rarely matches the mouth movement in your movie, you have to make a distinction for when it's not supposed to, just so we know what's going on.
By the way, hilarious. Honestly, the few scenes you've posted have been some of the funniest you've ever made. I'm very much looking forward to this!