While one of the characteristic of a RISC processor was a simpler instruction set its not the only one. There is also uniform instruction length to make instruc

While one of the characteristic of a RISC processor was a simpler instruction set its not the only one. There is also uniform instruction length to make instruction decoding logic simpler and quicker and that a single instruction doesn't takes longer than a single clock cycle. But you are correct that the water today is somewhat muddy especially as CISC processors borrowed stuff from the RISC processors and vice versa. I think someone in the late 90s coined the term CRISP (Complex Reduced Instruction Set Processor) to describe these beasts, although I haven't seen the term mentioned in recent years.