Which scenario is more likely... a cluster of "breakthrough" Covid cases at 100 times the normal rate of occurrence, or a number of employees at an elite sports franchise cheated on getting vaccinated?
If the vaccine was known to be harmless why would anyone “cheat” on getting it? I worked as a senior Hazmat officer for many years. My “team” and I took ten times as many vaccinations as most of the public. No one bothered to cheat on the vaccinations that I am aware of.
But playing devils advocate... Many of my former subordintes and coworkers have been refusing to take the experimental vaccines at the risk of losing their jobs and future promotions. So the incentive to “cheat” on this would be much higher.