The strange thing is they *had* a partnership with Alpa, with all that 'A Series' hoopla. So what happened with that relationship? Did they just see the price of Alpa gear and decide they want all those $, not just the most expensive bit? Won't they do the same thing with Cambo, or whomever in a few years?
Take all this with a decent pinch of salt. It's likely not true. Easy to see a conspiracy where there is just confusion!
(But... if I was Alpa or Arca or whomever, I'd be headed to Shenzen with a Hahnel 12 pin, to get it copied adapted. I hear they are rather good at that there!)