Indeed. If I just want ultra-low to find my way to the bathroom without waking my partner, I have a torch that starts there, and runs off one AA.

Edit: Olight S15

Or if there is a bump in the night, or I am tracking something I may have not shot perfectly (not happened yet, but they can run even with no heart left), at last light, then my 5K or 10K lumen torches serve their purpose, and I like them to turn on full-blast.

Edit: Q8 and MF01 are good for this, once you know the button presses.

There is no one-size-fits all. Horses for courses.

I think memory of previous settings is an over-regarded feature. Not against it, as long as it can be disabled.