Well, if you ask me, it's not okay.
There's much that is missing, and much that is superfluous, in current public school curricula.
I must beg off, sorry; I'm up way past my bedtime. I'll try to rejoin tomorrow night if the thread is still active...
I always saw it as a tacit admission the rest was bunkum, therefore it could be treated in the same way as Greek religion myths are discussed, but Christianity was special as it was correct and not to be casually torn apart the way you could take apart stories about Zeus and Hera.