If you check out his post and go down the middle column for Vertical Angle of View, you’ll see 59.5° corresponds to a 21mm lens on a 35mm/full frame camera (don’t believe what SU tells you it is) which is the beginning of ultra wide territory. 35° corresponds to about a 38mm lens, which is barely the beginning of wide angle territory. Not an uncommon focal length for a cell phone or point and shoot camera.
I almost never use scale for that operation. I’d use move instead. Takata’s Stretch by Area would move them all by the same amount in one go.