I think adherence to definitions is what reality is based on. Whether the cases were inflated or not, the definition played a role in people's individual ability to know what partially afflicted a person at the time of death.

I think whether something is causal or not cannot be decided conclusively and is always subject to revision upon new knowledge (say, it's discovered that persons who died in an motor accident were not just co-incidentally vaccinated/covid+ recently, but that some causal link is discovered that shows specific kind of motor accident happening due to a specific disability that is caused by the underlying condition, say paralysis)

but they have no justification to change it now after they've used that definition to convince people about their risks of death from that cause. Actions were justified based on that definition and the relative safety promised by taking a course of action.

Changing the definition is akin to changing the rules in the middle of the game when they were losing. This is not fine. Many people might die with Covid where the vaccine made it worse. How are we to detect that signal if they change it now?

If we accept this manipulation, we will accept anything. They will vaccinate the whole world against a mystery disease and they will change the defitnion of the disease after they've vaccinated the world. This is not good. this is being played.