Article doesnt explain well why we need a fork. Any fork has a chance of destroying bitcoin through a chain split. So the argument has to be really good. So far it's niche R&D and use cases that have not demonstrated a large appetite. And the risks are not fully explained. The surface of what we can do with the current tooling has barely been scratched, and that's an indication that there is not a pressing need, right now. It would however be a great social attack on bitcoin if it is able to split the community. Obviously something bitcoiners dont want, and bitcoin's rivals do want!