Not to mention decentralized trunking.
I think your hair-splitting demonstrates a desire to show off "superior" knowledge rather than a highly considered and genuine technological issue. Digital LTR is not conceptually as complicated as you make it sound. I hope actual system designers aren't as easily discouraged as you appear to be.
Then again, I guess we hobbyists would be better off if designers were put off by "complicated" innovations. Then we wouldn't have to buy new scanners so often.
By the way, if somebody starts selling a DLTR-type system, I want royalties!