Regarding the "plainness" of Filmation characters as toys vs vintage designs. I agree. However, there were toys that were released in the old line based on Filmation, like Orko and Sorceress, that maintained that detail-sparce aesthetic. Randor got a cheap repaint in the old line, as cool as the parts used may be.
I do wish they had more detail, but it's kinda interesting that they share the design approach of the vintage line in this way. And I finally have "my" Randor. :-)