This is actually very interesting. I must admit I hadn't really given the topic much thought. So what you are saying is that we should gauge intelligence based on what computers can't do and not what they can do, better.
Well I would say I agree to that, but to an extent. I don't necessarily believe that intelligence is based off of the difference between everything, including inanimate objects. I believe intellect is gauged by person to person. The average human can only utilize about 10% of their brain, but who knows what could happen if a human used 30% or 50%. We can't compete with computers when it comes to memory, that is for sure. But we are the ones that created these computers that store so much memory. Of course our memory can't compete with a computer; we built them for that purpose.
But onto the view of what intelligence is gauged on. I honestly believe that intellect is an amalgamation of all those things. I agree that there are many right brained people and many left brained. True brilliance in either the art or calculation field is achieved from people of one side or the other. However, I would consider a true genius to be well rounded. A renaissance person. I would also gauge intelligence by overall awareness or common sense. So many people are book smart but have no ability to apply it to anything.
But that's just my opinion.