There are enough affordable third party manual lenses. That's basically the Chinese territory with DZO, Laowa,SIRUI, Pergear, Mitakon, etc. And Samyang/Rokinon/Xeen isn't far behind, albeit also going for the higher tiers.
What BMD ought to consider is either an on-body or an external LiDAR auto focus system, which would cover some of the gap between the manual glass and the on-sensor AF (PD/CD) from Canon and Sony. If they can do an on-body design like many a smartphone, then could conceivably combine that with its own lens brand. But staying universal is probably better.
Lidar is another possibility for 3rd party integration and BMD would not even be needed when used with true manual focusing PL primes with hard stops and a motorized follow focus, not that I would need that but it would work great on the Sony Primes, there is no flex in the PL mount, rods, lens body is metal, designed for follow focus already. Lidar seems a natural. Shoulder mount with the bicycle handlebars, starting to look like a solid system.
