Sure, there are reasons for it being that way, but it makes it stick out from the mainstream. For example, if you're writing a codegen, before RISC-V you could

Sure, there are reasons for it being that way, but it makes it stick out from the mainstream. For example, if you're writing a codegen, before RISC-V you could assume that you had CMOVE and now you can't. The risk is then that the RISC-V backend will emit some clumsy sequence that emulates CMOVE, to make it fit in with the others.