I didn’t see anything about heart failure (or soaring rates in heart failure) in their cited study (not peer reviewed yet). Did you?

“No children experienced a myocarditis event, all 3 pericarditis events occurred after first vaccination and did not require hospitalisation or critical care.”

That’s 3 in ~16k, btw.

https://www.medrxiv.org/content/10.1101/2024.05.20.24306810v1