Agree, that could fix another issue related to pricing.
We use marketing and sales. Marketing charges based on number of contacts, but Sales does not. For Group A contacts, we use only Sales features, yet, since we have marketing activated, those contact count towards the marketing bill. So, virtually, for those contacts, a big account (using sales + marketing), we pay more for sales only than a small account (using sales only).
With archived contacts, Hubspot could charge marketing based on the “non-archived” contacts and prevent those contacts from using marketing features.