You are absolutely correct. I do a lot of timelapses and they force me to stay next to the camera for several hours. Your module + AETTR is a way to put camera on "Auto" and do other stuff. I'm getting really great results of this combo + your deflicker script. And do not mind some jitter in time domain - can fix it in post for what I do. If it's not hard to implement, I think a lot of people will say thank you.