It's not whataboutism, whatever that means. It's an illustration that the use of 'authoritarian/ism' as a pejorative against one state in particular is a kind of inverse category error. The fact that a state is authoritarian is not automatically negative (except to anarchists); the term applies to every state. Hence, to use 'authoritarian\ism' to imply a negative is only coherent if one means to criticise the state form itself.