Like V8i? You’ll Love CONNECT - Recommended Scales

I have just watched the video of the above blog by @ at and I have to say that 'm confused. I understand what is going on but the resultant 1:100 scale ref attachment to the sheet must be wrong, as there is so much of the sheet left to fill. Why didn't it recommend a scale of 1:50 which would fit the sheet better ans was actually the original scale proposed.