In the comments he accidentally stumbles on the real problem, without really understanding.
Pixel art as a more expressive form, sure, it's easier than trying to bend 3D or vector art to your vision.
Pixels as a statement, no problem there. It completely misunderstands what artists were trying to achieve back in the day when all game art was pixel art and the work went into making it not look like a bunch of pixels. But I can go with a deliberate style.
The screenshot of his game just looks like they drew the graphics at too low a resolution then badly scaled them, not an explicit statement about pixels as an artform. Either go big on pixels or go HD, anything in between is a rendering error and users will see the error not the intent.