With the small numbers talked about it’s probably just a statistical blip combined with these people having a high public profile. As the article notes whilst it’s rare it does happen.
For example in this same period as these footballers I had a heart attack whilst exercising. Whilst at 39 I’m older it’s still very young. I am also pretty fit and have no obvious physical heart problems. So right now the doctors think I just got unlucky. No steroid or drug use on my part either. This was also prior to getting vaccinated and contracting Covid.
The reason this is catching attention is that there's a big jump in the number of athletes suddenly collapsing or retiring from sports due to cardiac issues. The number I've seen is 6x, which was based on comparing verified reports so far this year with an academic paper from the early 2000s that provided baseline numbers. 6x is a lot.
There's recently been a swathe of deaths in the fitness industry but in that space it's clearer to see, every other guy is on TRT and half of them at least admit it. There's a running strain of Roganism as well, that healthy people don't need the vaccine and the elite athletes might suffer in some unknown way from it.