This video could've worked a lot better if the speaker had a lot more energy for this. Take for example Lyle McDouchebag's work:
He makes it clear the character he plays doesn't want to be there by making side remarks, but he's always loud and clear in what he's saying. Even though he doesn't want to be there talking about some dumb shit he doesn't care about, he takes the time to enunciate his words as if pretending to care so when he makes those loud side comments it comes off sharper.