To me it's kind of like washing your windows. Sure, it's fine if you don't do it. You can still see outside. The window works. You may even prefer that less light comes in if you're opposed to light for some reason. But once it's clean, you're really getting the full effect.
There is a reason your house and car windows are polished to a reflective surface. It provides more acuity.
I far prefer this anti-reflective glossy setup to my previous ThinkPad which of course had a matte display.
Really? I see my own reflection even in indirect sunlight and it's causing significant eye strain.
I'd take a glossy display anytime of day, and have so, since 2005 or so, including external displays. Better color saturation, no artificial fuzziness (which is exactly what the "matte" is in the matte displays, they literally reduce glare through a mesh that also kills contrast and clarity).
In very bright conditions (like bright sunlight), the backlight can’t be bright enough. But in those conditions, matte screens suck too: they look super washed out, like there is a thick fog n front of the screen. (Optically it is the same phenomenon: diffused light rays start to overpower direct light rays.)
The backlight obviously couldn't compete with sunlight, but the LCD behaved transflectively under enough light, so my Emacs session out in a meadow on a bright, sunny day was perfectly readable. That was unexpected. It wasn't an advertised feature. I don't even know if it was deliberate, but it worked great.