[Tanoc]

>Tesla’s ability to cancel indicators once it’s seen you’ve completed a lane change operation seems to be a step forward

That already exists. It's called "tap to pass." Tap down the left stalk but don't let it indent, and then it'll flash three to five times (depending on manufacturer) before resetting. Even then most modern steering wheels have speed sensitive systems that let you just bip the wheel right or left to turn off the turn signal at highway speeds without a full quarter rotation of the wheel.