Well, sure, but on the other hand it's more likely to be thought of as (e.g.) a term for unconscious brain activity, or for thinking people do that isn't apparent to others, or for any phenomenon in the natural world that has computational power despite not having an obvious computing mechanism (e.g., evolution). And, at least to my mind, it has no particular connection with the phenomenon it's supposed to name. What I'm not seeing is why "stealth computation" is, overall, a better name than "mind projection fallacy".