That's was a great read and I agree with the author. Though to be honest, I don't particularly like the type of Amiga pixel art in the article. That is, pixel art with relatively high resolution and relatively high color depth. Everything looks too smooth and hyperrealistic in my opinion.

I think things can look much better for pixel art that is either very low resolution (e.g. the small characters and objects in a SNES game, which would usually be just a few pixels wide, so every pixel has to be placed deliberately) or has a very low color depth (a pallette between two to ~16 colors, like the backgrounds in a PC-88 game), or both (like the sprites in a Game Boy game).

An example where higher color depth can ruin the visuals is "Snatcher" by Kojima. The backgrounds for the original PC-88 and MSX versions were relatively detailed (200x100 pixels perhaps), while the color depth was very low (8 colors?), which greatly accentuated the pixel-art look. However, the later re-releases added more and more colors and smooth gradients, which only made it look worse, like a mediocre comic book.