I mean, technically, another guy's tongue, dick, and other body parts are surfaces, right? ✌
I guess the "fomite" term is more definitive. If the studies and research were well-supported that the spread of COVID is mostly attributed to air droplet transmission and not through fomites, then perhaps sanitization might not deter the spread of COVID, but sanitization could be beneficial for things other than COVID - like disinfection, reduction of fungi (if applicable), or just the overall satisfaction of someone who might be OCD in having cleaned up something.
Regardless, if the research is accurate, sounds like folks should not be comforted by mere sanitizing, but really to just isolate and quarantine.
Or maybe I just like the smell of sanitized surfaces. ?♂️