Nonsense.
What Laxer is saying is that the 99% is not a homogeneous, monolithic social stratum, pitted against a tiny minority "enemy". There are reactionary forces within the 99% that help to preserve and carry out the rule of the 1%, and whose material interests are therefore inextricably bound up with it.
I would have thought this was apparent to everyone — that the "99% v. 1%" dichotomy was an exaggeration for rhetorical and sloganeering purposes, but that it doesn't really correspond to the actual power structures and distribution of wealth in advanced capitalist societies. Laxer is correct that this dichotomy is false. The 99% are not all allies, and it is foolish to pretend that they are. Moreover, it glosses over and obscures real class differences.
It's not about enforcing orthodoxy at all. It's about understanding the class nature of society and knowing who your allies are and who they aren't.