My finish lines are the dog wrapping the final obstacle (with a cue to do so) and coming back to me. It does not matter at all where the leash is, because we're going to walk together, put it on and leave. Where I am is more relevant than where my dog lands.
NADAC is never going to make everyone happy. Someone is always going to have a problem with something because it doesn't work for their dogs. Someone is always going to be extra happy because a rule works super well for their dogs. Most people will fall in between.
NADAC's job is to serve the majority to the best of their ability, and if that means losing some competitors, well, so be it. Because serving individuals with specific rules is simply going to make SOMEONE ELSE unhappy enough to leave to threaten to.
Most other venues do not offer you the opportunity to have a personalized debate with the people who make the rules. It takes lots of people showing that there is a problem before things change and even then they do so, slowly. Frankly, I think that in this those other venues may have the right idea. The stress and time wasted on engaging EVERY PERSON who has some issue in NADAC has got to be enormous.
And not useful.