There is an upside to that madness, and that is the Apple had a 6 color high res graphics screen, and when only one pixel is used, it actually has a close to square ratio.

Most 2bpp displays of that era made wider than tall pixels.

The result, given creative use of patterns was a high res display that could pretty much do anything. Maybe not that well, depending, but 6 colors per line makes differentiating objects clear.

4 is not quite enough.

I would like to know as well.