If so, your definition of "intelligence" is incomplete. What are those contexts? Can you really generalize all of those contexts for all possible intelligence systems? That sounds like an epistemological nightmare.
But actually there's a real interesting thing here. People used to believe that the heart did the thinking. Phinneas Gage upended that theory, and now people think that the brain is the thinker. More recently, we're learning that the gut has a massive neural network, and the brain-gut connection is being investigated today. Likewise, "muscle memory" isn't in the muscles nor the brain, it's distributed among neural clusters all throughout your body. How much of "you" (your knowledge, your personality, your physical skills) is actually contained within the head is entirely non-obvious.
As far as your gut, if you claim that a thermostat is intelligent then sure your gut is also intelligent (don't forget the microbiome in there too).
Says the user who just made fart noises. Your confidence here is dunning.
Octopi don't even have a centralized brain.
> First of all, muscle memory is not contained in your muscles or "distributed" throughout your body but is known to reside in your cerebellum and basal ganglia. The nerves going down to your muscles are simply a conduit for actuation, a wire, nothing more.