That's more of an argument for reflective/transflective screens. Trying to overcome both sunlight and reflections with a transmissive screen doesn't work very well, and only exacerbates the eye-health problem. Not great for battery life either. That's a lot of problems to be solved before there's even a chance that people would use their computers more outdoors, and even then the odds are slim. Maybe people should get outside away from their screens.
That's like saying that we shouldn't read books on the beach. You have to meet people where they are.
A secondary reflective screen on the outside of a laptop might be the better solution, but from what I remember reflective screens usually don't have good colors. The last TFT reflective screen I remember has been hard to find an outdoor picture of although.
> That's like saying that we shouldn't read books on the beach.
It's nothing like that. People do read books outside. They don't use laptops outside. (Statistically speaking.) "Meeting people where they are" means two very different things in those different contexts.
> reflective screens usually don't have good colors
Yes, you have to pick your tradeoffs. If you want an outdoor-viewable screen, that will probably mean some sacrifice in refresh time, resolution and/or color gamut. This is why the only place you do find reflective screens is dedicated e-book readers. Brighter transmissive screens are not a solution in this problem space, so this use case does not justify them.