There have actually been a few discussions about this... I think we can finally get it into the game with the next regular update... CursedXistence is eagerly waiting for it too
I'm just a little unsure about the standard size of the torus. It would typically be one block across, but not very tall, so it would be more like 0.1 to 0.2 blocks high or thick. Does that roughly match your idea?
What, little old me....nah not at all... only been waiting for it since the beginning of time... lol
Jokes aside, there's only a few block shapes overall that are still missing after the last group you added and torus and torus segments have seriously been one of the most requested ones. Being able to make more realistic looking ropes / bindings will definitely be a big game changer for us builders.