Hi Travis,
I agree with you about the side windows . . . but if you check out
https://CruxHomes.com, you'll see that you can definitely have windows on the sides. This is Brian's home (the author of the design):
The folks that built the house in the video chose not to have side windows (probably to save some money) but maybe because they didn't feel their home needed it. Check out these images . . .
Here's the the first gable end with lots of windows:
Here's the other gable end:
And this is what it looks like inside:
I would personally still want some windows on the side, but it's an individual decision. Please let me know if you have any other questions about CruxHomes :-)
Cheers,
CJ