Author here. For me it's well spent, since this is my daily desktop driver. I can't comment on (C) or (A), though I agree (B) is a problem. But while RISC-V has a "future" (or at least a more distributed one) I see no system currently or in the near future that's anywhere in the same performance ballpark. The architecture has a lot of potential but it feels to me like it remains unrealized. OpenPOWER exists today in competitive specifications and notwithstanding supply chain issues, you can get one (I have three).
