I believe that targeting is a training thing.... and I believe it should not be allowed. My dogs like to get their leashes for me and I don't want to take the chance of them missing the last obstacle because a leash runner set it off to the side. In which it is NOT their fault if they do and my dog does that!! I do use targeting while training, but it is a trained behavior and they only get to "go get it" when told. I actually proof this by having targets in my practice ring. I have many many holee rollers just laying around
Also I don't want my dogs going and "taking" their leash from the leash runner if they are still holding it. That is just rude
That being said, I do have my dogs finish the last obstacle and IF my leash is NOT in the hands of the leash runner and laying on the ground.... I will tell my dogs to "Get your Leash". Two of them really enjoy this process and I have made it their end behavior. They don't HAVE to do this, they just enjoy it. And honestly, I enjoy them engaging with me and bringing me the leash as I don't have to go find it or get to it. I can get my dog that brings me her leash out of the ring faster than the one that doesn't.
I think that it should still be the default that the leash runner takes/hands the leash to the handler UNLESS asked differently. It really does help lots of people leash their dogs faster, and it helps those that need to really stay engaged with their dog. They don't have to disconnect to go "find" their leash, even on a bucket they still look for it. I really hope this part does not change.