Do you realize this isn't a precedent being set now though? Species names change all the time, for a variety of reasons only some of them strictly scientific or out of actual taxonomic necessity. The hypotheticals you're alarmed at have already happened, in some cases over a century ago.
Species names change all the time for --Scientific-- reasons. That reflects that our knowledge about the species has improved. This move is totally unrelated with science, is bipartisan (not all scientists agree that the local toponym caffra is a racist word) and just adds a lot of confusion without improving our knowledge about the species.
