Two wrongs don't make a right. I'd say it's more important to stop teaching pseudoscience in science classes than to use it as a justification for teaching pseudophilosophy in philosophy classes. And in general, novels should be taught in literature classes, not philosophy classes - although the example of L'Etranger suggests that there is room for crossover.

(Anyway, the majority of Rand's work takes the form of non-fictional essays. Her novels made her name, but it's clear she saw them only as means to an end.)