I've seen a report where Omicron is nothing like the original C19. Report I saw said definitely manmade, likely from level 4 lab in SA, ergo first sighting there. No sauce. Read a lot, not sure where this one was. So, speculation.
Let's go with the idea that if the original vaxxes were designed for the original C19 pathogen, and that pathogen is relatively contained, but you wanted vaxxes as a money maker, then why not design a stream of newer pathogens that skirt the original vaccine? Not as deadly, so as to not reduce the customer base, but to instill enough fear to keep booster demand high. That keeps the vaxx money cow producing milk.
As for the original C19, are there enough unvaxxed WW to keep that particular pathogen in circulation? If it's the deadly strain, that would be necessary to keep the fear level high so that people, eventually, wouldn't bother about the less virulent newer strains if there were no arm twisting from governments WW.
The answer to this chick, then, is to say that the newer strains aren't as virulent, and that any with severe symptoms ma yactually be infected by the original. There would have to be reports of what strain the deaths are coming from. It's not enough to say vaxxed are getting covid anyway. You have to know which strain they are getting and if the original C19 cases are predominately unvaxxed. That would be the case if the "business model" I speculated about were actually in play.