I like to think of modern pixel art as its own aesthetic and art form. It's designed to be viewed on high DPI LED screens, and that's fine. I don't think it should be judged by how it looks on a CRT.

There's an undeniable charm to the older era of pixel art, and surely part of that is nostalgia, but I also think a lot of it comes from the fact that the economics and the hardware were a lot different. Up until the mid 1990s, the highest paid artists in the industry were working on pixel art games. The hardware was slow enough that there were real creative constraints, and we know that constraints often drive creativity.