Wasn't it RJR who flung open the doors (legally) for homeschooling in the U.S. in the 80s (on the argument that there can be no epistemological neutrality) or am I thinking of someone else?

That's true, Bahnsen was helpful and applied Van Til probably better than anyone else I've encoutered. But he would've needed more Vos (Van Til's favorite teacher) to bring it home for me. What Bahnsen rejects as "epistemological dualism" needs to be reframed within the redemptive-historical context of Vos' "eshatological dualism"--that is, the "already" and the "not yet."