We were helping someone on Discord get the Big RR scheme and BAZA pointed out there is teleport in the official league scheme.
Now, it totally makes sense to have teleport in Tower Race, but it shouldn't be in Big RR. (TTRR doesn't have teleport)
They are 2 different styles of roping and tactics, 2 separate schemes with completely different map styles, so I don't see why they don't have individual schemes on TUS.
Also, with the addition of 3.8, i've been playing a lot of Tower Race with Anti-Sink on and people seem to think it's much better, so you only need 1 worm per team, that is a big of a drastic change though so I imagine people would want to try it for themselves, and discuss it before possibly implementing this.