Anyone who is into photography knows this is flat-out untrue. Aspherical lenses are a big deal in the high-end camera lens world. Canon, Nikon, Leica, Zeiss, etc. all have aspherical lenses.

I wear glasses and my glass lenses are made by Zeiss. My left eye has mild astigmatism and the glasses correct it perfectly. Each one is made from a single piece of glass that is ground to shape.