I call bullshit. I don't know what kind of school you went to, but any half-baked intro to philosophy class at an American university will address free will. The problem with philosophy at American schools is not that they're worried about corrupting the youth (where the fuck are you even getting this, Liberty University?), it's that far too many of them worship at the feet of Quine and his disciples. So they're often very dismissive of anything outside the analytic tradition.
To the extent they refuse to address the kind of questions raised by TTON, it's because they regard these questions as nonsensical. If they don't discuss free will in higher level classes it's because free will is a poorly defined concept (WTF would unfree will even look like?) that's a relic of a time when serious people still believed in metaphysics (the free in free will originally meant free from divine interference; take god out of the equation and at most you're just asking if we live in a deterministic universe, which is a question for physicists). Only an ethicist would touch a question like, "what does one life matter," and in my experience ethicists are held in contempt by the rest of the discipline because they don't have anything useful to say. Neither anglo-analytic nor continental philosophy takes this stuff seriously.
I actually like TTON somewhat when viewed as its own thing, but not because it grappled with "serious philosophical issues" that were rendered irrelevant, one way or another, by either Nietzsche or Wittgenstein ages ago.