I think the disconnect here is between what both camps think of as the reason for this feature.
High Beam Assist, as I think Lucid and I see it, is a function that, when you engage the high beams (pushing the stalk, because you are on a dark country road, or whatever), the car automatically turns them off as needed when having them on could prove a danger to other drivers. So you turn your high beams on when you need them, and the car turns them off automatically briefly whenever a car is coming or is close in front of you.
Hitting the stalk isn't enagaing High Beam Assist, in other words. It's engaging the high beams. This is why Assist is a separate setting in the settings panel.
I think you and others see it more as "I want my high beams on all the time, unless they are a danger to others. So just keep them on at all times unless I am about to blind someone."
I don't think any driving manual anywhere would suggest driving with your highbeams on all the time is an accepted norm. On a highway with overhead lights, or on normal city streets, high beams should not be needed.
If the Lucid system is good enough that it will basically never turn on your high beams in those situations, I could see how just never having to think about lights would be nice. Based on how terrible my Tesla is at turning on and off the high beams, I highly doubt this system would be that good.
It's not exactly like the auto wipers, which absolutely should remember their automatic setting. I'm glad Lucid fixed that. This makes sense, because the wipers are basically not on until there's rain. They aren't running all the time, and then being turned off occasionally.
I absolutely would want to use High Beam Assist as Lucid has currently implemented it. I decide it's too dark on this road, and the car prevents me from harming others as a result of turning on this extra light.
I absolutely would not want what you and others are proposing, which would effectively turn on my high beams every time I got into my car. Unless I wanted to disable the feature altogether. And thus, I'd have to manage turning on and off the high beams manually when I do (occasionally) drive on a dark road.