Thorn bird - no, it's still multi-crew. I was thinking about SP aircraft >5700 when I wrote, but you clearly referred to the multi-pilot Citation series. Sorry about that.
Yes, your point about inc costs for no extra benefit for these aircraft is valid. If it's any consolation (probably not!) Australia is simply joining most of the rest of the world with these new regulations. Except for the LHS test requirement, which is inconsistent with a "competency based testing" philosophy.