I don't agree with people saying enable NOAP at the beginning of the trip. I mean, why else allow you to enable/disable NOAP while driving? Sometimes you have it on at the beginning of your trip and decide that it's not changing lanes when you want it to, or it keeps juggling between two empty lanes... in which case you'd obviously want to turn off NOAP...
Though I agree that I wouldn't look at my screen and fiddle with it when there's a fork (and I'm in the lane that divides)...
Turning it OFF isn't the issue.
The issue here was someone turning it ON- and doing so right before it would want to make a manouver so that it's likely starting it late and out of position.
And yeah that's just generally a poor idea.
I do have ONE spot where I do something like this- it's taking an interchange between 2 highways, the interchange is 2 lanes, but the right one I know will end in a bit over a mile... my exit is in ~2 miles...and if I stay in the left lane of the interchange ramp I can stay straight in that lane to my exit.
I turn off NoA once it goes to the interchange- because otherwise it will either:
A) Try and pass people in that right lane (because others know it's ending soon too and often don't clog it up)
or
B) Try and pass people on the left right after we're on the new highway, which means it'll then need to get BACK over into the lane it began in to take the exit in a mile or two- and might be thinking of doing so while that far right lane is still having folks merge left as it ends.
Much simpler (though probably a touch slower) to just stay in the one lane.
So as I say I turn off NoA when I get ON the interchange.
I turn it back on AFTER the interchange, when I'm in the "correct" doesn't go away far right lane, but still a good mile from my exit (so close enough it won't try passing anyone now) and then it takes the exit- no drama.
That's the only case I can think of where I do that in 70+ miles a day of driving though- almost all of it on NoA.