Fall from what? Rates from 2022?
This is expected data. Now that parents, students, and doctors know what damage they're looking for, they're wisely screening student athletes out. From your article, the one group that's not getting screened out is student basketball players (who are disproportionately from poorer neighborhoods and such student athletes more often have few options other than high school and college sports).
The American Heart Association updated their student athlete screening guidelines in September 2021. Now why would they go and do that if the Jim Jones Jab is "safe and effective"?
https://www.heart.org/-/media/Files/About-Us/Policy-Research/Policy-Positions/Healthy-Children-and-Schools/Athlete-Screening.pdf
“The American Heart Association updated their student athlete screening guidelines in September 2021. Now why would they go and do that if the Jim Jones Jab is “safe and effective”?”
I guess since the jab is not listed in the screening that the consider it a non factor ...