This is what happens when poorly formed sisters read Germaine Greer, Teilhard de Chardin and L. Ron Hubbard in one sitting.
Yes, that’s a lethal mixture!
Another thing rarely mentioned because it sounds sort of insulting is that most of these sisters were in what were originally teaching orders, aimed at teaching grade-schoolers and not even high schoolers. The education of religious sisters wasn’t exactly extensive or profound, and many of them attended a sort of “sisters” track at Catholic colleges if they even went to college. So a lot of them weren’t the best educated or even smartest of the religious world to begin with, and suddenly they were reading these wacky things with virtually no intellectual background to defend them. And the fact that these sisters had rejected the authority of the bishops or the Church (with no penalties, generally) meant that they had nobody to keep them from imbibing deeply of these poisoned springs. (Teilhard wasn’t entirely poisonous, btw, but he certainly provided ample material for misinterpretation.)
Ah, a little learning is a dangerous thing...drink deep or taste not the Pierian spring...