Hi Les,
I realize i had you on the "Ignored" list for a long time. I don't know why, because you post some comparisons that are interesting, for example the picture you posted elsewhere comparing the size of pro 35mm film cameras. Thanks for those comparisons!
You're correct, "inferior" is a silly word. But also consider that a 50/4 lens doesn't really require too much size, so it's easy to make compact. For example the actual lens (actual optics) of the Canon FD 50/3.5 lens are tiny, all the bulkiness is just the helicoid.