I have to admit that I’ve not seen those plywood radii before. Upon seeing them many uses come to mind, pedestal tables, columns etc. A little veneer and away you go. I like plywood for filling in those big open spaces. I don’t have a problem with it at all. Similar things have been done for a long time. Laid up brick curves and such. The quality of the plywood comes into question more than the product itself.
Jim