Well, I hope he's drilling being on his back and getting back to his feet. If he's focusing only on just the sprawl, whizzer, and framing, then in might not be enough. Worst case scenario is that Khabib chains from one TD to the next, push against the fence, and finally gets Justin down. Justin has to be training for the worst case scenario, and that is fighting to get back to his feet. I'm sure he's doing that, but he should be working his grappling overall anyway, not just because defense is important, but because sometimes offensive grappling is necessary to counter, not necessarily to win grappling exchange and get Khabib down, but just enough to separate a bide some time. I really hope Justin is taking his grappling more seriously than just not getting taken down. I would hope that's the case.