OMG, Yes! I've been disturbed by this. It's not new that Derick's attitude toward education was likely not to be the Duggar way, since he was not home-schooled. He has not renounced his ugly, hateful world view or suddenly become an open, honest and truthful person.
Sending Israel to kindergarten is a tiny step that does not indicate that the world has shifted on its axis and that everything is different. I hate to add lots of speculation, but it seems likely that the impetus for this was from Derick, not Jill. There is nothing hinting that she is suddenly interested in getting more education for herself or that she wants a career now.