yeah, but that's not a significant point. covid "not having been the flu" is a different statement than covid is just the flu now. the Spanish flu (1919 or whenever that was) was not "just the flu" either, but it burned bright and then died out in a very short time.
the question is not whether covid-19 happened, it did. the question is whether our various responses did anything or much at all to help, and whether it was productive to turn it into an us/them political issue and suppress speech and criticism to maintain the facade of being right. qui bono?