I mean you are dropping the whole colds are coronaviruses too part though. though, the "cold" has a bunch of possible viruses that cause it (something like 200 different viruses) with the rhinovirus being one of the larger ways since it's so resistant to being inactivated comparatively to sars2 which only lasts for a day to three as a fomite vector, is neutralized by soap and water or 70% IPA. If covid had a viral vector like a rhinovirus that can last for months on surfaces in wide variety of conditions on surfaces and also spread via aerosolized particles it would have been a completely different pandemic that would have been far more deadly.
Only 4 known coronaviruses that cause a cold, anyway. While it'd be a bit surprising if there were more, HCoV-HKU1 was only discovered surprisingly recently.
There's only like 7 coronaviruses that have been discovered to infect a human. Three of which are SARS, MERS, and COVID19.
Its pretty novel, all else considered.