I’m not sure this is s good argument against the technology because there is a solution to this objection: they’ll improve it and ensure every face type is comparably recognized. It should be rejected on more basic principles.
With a pervasive system, unless people are hermits, they’ll get scanned periodically, and with other bits of information the changed face can be correlated with the same person (I go into a salon looking one way, come out different, go into a boxing match, come out different, but I’m following my routine and go to the same subway stop and convenience store and use the same payment method, etc.)
Generally the arguments against a technology is not that the technology does not work for its purpose, but that the way humans will use it is problematic.