Sensor and motor handling are important but not necessarily equal to general intelligence. A person suffering locked-in syndrome is still intelligent; an anemone responding to stimulus with movement is not.

I‘m not saying it’s equal, just pointing out that it’s a good indicator of processing capacity that is necessary to match human intelligence. We are aware of the environment and learn continuously from interactions with it. It should be expected that AGI can do the same.

Your case with locked-in syndrome is interesting. Can human brain develop intelligence in full absence of any senses? I doubt so.