This seems like a recipe for disaster when you are in a situation in which you need to respond quickly to an unexpected circumstance.
I thought it might be annoying when I first got a car with LKA, but I've yet to have any complaints about it.
I think that's an odd behavior. As far as I'm concerned, using the signal is just as much of part of a lane change as is turning the wheel. Be in the habit of using it every time and you'll never forget it.
Especially as a pedestrian I think a lot of drivers are basically blind to your existence and then don't bother to signal turns because if they don't notice you then why would they need to warn anyone of what they're about to do with their 6000 pound metal box? And besides, are pedestrians really people anyway?