None of those really exist at the level where these metrics are collected, and myocarditis is a general medical condition that one would get treatment for.
I think it's hard for a lot of people deep into their beliefs to realize that the vast vast majority of the population just doesn't actually care. You get a vaccine. Done. If you then get sick for whatever reason you'll go to the hospital or not. Vaccine isn't even part of the thought process. Medical staff will treat you because that's what they do. Then it will go onto whatever metrics exist. Then later someone pulls the numbers together but they're not the ones collecting them.
There's no grand conspiracy because people don't actually care and it doesn't impact them in any way either directly or emotionally.
edit: As a movie villain once said: To you it was the most important day of your life, to them it was a Tuesday.