This vaccine is not like the old vaccines..
I’m not sure that chart helps the argument. Both do the same thing, but in one case, the virus is grown in large batches in an egg, weakening every generation, taking time and biohazard precautions, whereas the second way uses the body as the egg, producing an weakened antigen in real time. From the outside, a slow mutating virus could be beat with egg-grown, but fighting an andromedia strain needs speed.
But, gotta ask, who’s doing it conventionally? IF egg-created antigen is the golden standard that can’t be messed with, shouldn’t somebody have a conventional vaccine by now? There seems to be an obvious demand for one.