I was of that opinion until I decided to test it out. It doesn't hold up. Clarity is the main factor, I found. A matte screen must by definition diffuse light, which causes image to become blurry - and visibly so.
A glossy screen, for all it's annoying features, is just clearer and colors have an easier time being represented accurately. And most modern glossy screens now have anti-glare as well.
And sharp reflections on glossy screens make color-sensitive work difficult. Diffuse reflections are much easier to adjust for. Can you better support your claim that glossy monitors represent colors better?
I got a matte screen for the first time in several years, and immediately had a reflection problem from window light. On a glossy screen the problem is a relatively small highlight, but on the matte screen it was a giant blob that took up a significant part of the screen. The glossy screen is usable, the matte is not.
Anti glare has improved significantly on glossy screens, too.
I've been working on glossy screens for years and never had a problem. Perhaps people need to change their work environment instead.
What do you mean by "vibrancy"? Either a monitor is calibrated to a given color space, or not. And the diffusion of an individual pixel is orders of magnitude too low to significantly affect the color of neighboring pixels.