You said, and I quote: "No MBA was EVER designed for the R&D part of building a company".
This is garbage. Unmitigated, sweeping, unknowing drivel. I understand your claim perfectly well, and you are flat wrong, and apparently from a position of zero awareness. I can correct you authoritatively because a) I have actually completed an MBA, and b) it was one that included comparative studies of R&D processes in the case work and a team-based competitive simulation of managing R&D processes. Along with a toolkit of knowledge that made company formation and launch much easier. This has, as I say, all been super useful in actually building my business.
Moving the goalposts to some nineteenth-century context and claiming it's the same thing is, as I said, simply doubling down on the wrong. Also irrelevant.