Brighter screens is a boon for anyone using a laptop, full stop. If it’s too bright, you can turn the brightness down, obviously doesn’t work this way in the opposite direction.

Besides, the point isn’t even absolute max brightness, but the contrast ratio. OLEDs aren’t the brightest displays, but their contrast ratio blows pretty much everything else out of the water and that’s what makes you go wow when looking at an oled in a dark room. (At least it does for me, still, and I’ve got an oled tv in 2018.)