Not to start a flame war, but, what makes you say this? Do you think that a spherical lens designed in the late 50s can be obviously better... to a computer-designed aspheric lens made in the early 80s? Kodak boasted the resolution of the kodak disc lens (can't remember the exact figures).
You can see some examples of properly scanned disc film and it certainly resolves to the full capabilities of the film:
https://photojottings.com/kodak-disc-film-better-than-you-think-or-worse/
Now, the comparison to Minox is, in my opinion, not fair at all, since the only Kodak Disc film available was color negative film, which is always going to be
less resolving and less sharp than black and white film, which is what Minox users often use... (emphasis). I bet that a theoretical B/W "acros 100" disc film, with the increased film base thickness (good), on a top of the line Kodak Disc camera would fare pretty well (equal or better) compared to the same film on a good Minox camera.
Fully agree.