Good article and Good thread.
It would indeed be difficult to find GR wrestling instruction in the context of self-defense, but IMO it is becoming increasingly hard to find a relevant BJJ school. The reason being is so many focus on competition and sporting applications. Some are teaching sport oriented methods and don't even know it. Those that claim to teach self-defense actually teach dueling and that is not what self-defense is about. Don't get me wrong, BJJ has much to offer and I have spent quite a bit of time incorporating elements from it and on the mat with some of the best in the business, but I feel like my wrestling background is probably more useful in terms of self-defense. Wrestling is generally superior for staying on the feet/defending takedowns, movement and control standing and on the ground. Takedown defense is an afterthought in many BJJ schools. The thinking in BJJ is often "why would the shark mind being dragged into the water". That's fine in a sport or challenge match context, but horrendous from a self-defense perspective. Sport based arts including wrestling will need to adapted and modified to be suitable for self-defense and there's generally no one stop shop where you'll get everything you need.