I think my post was misinterpreted. First, I was simply stating that a prime Summilux ASPH should be better than a much lower priced Sigma, digital-4/3s mount notwisthstanding. If it is not, then the Leica brand is in some difficulty. I am not saying that everything coming out of Solms is perfect, or is a world-beater. And I am not saying that great lenses are not made elsewhere. I have a bunch of Zuiko glass that I quite like. In fact, the OM 21/2 was (is) so good that when it came time to sell my M3 kit with 21 Super Angulon (plus DR 50 and 90 Summicron), I was comfortable with that decision.
But if a Leica ASPH prime cannot best other brands, at least in some respects, then Leica (wherever it chooses to manufacture it lenses) has more problems than just the issues with the M8.
Second, affordability, especially for the serious amateur, is a whole different conversation from actual lens performance.
If the 4/3s sensors cannot record the difference in a lens of superior performance, then Olympus is in trouble, not just Leica. FWIW, I have faith in both Leica and Olympus. But it's not unqualified belief.