We can all assume anything we want to, that’s the beauty of an assumption.
You can assume the managers know what they are doing in terms of not just making money but for risk assessment and mitigation of the real health risks this event has.
I can assume there is unmet demand for lessons in kayaking, swimming, and lifeguarding that could make equivalent money without the added risks.
If I’m cute with my assumptions, then you are cute with yours too.
Although yours sounds a lot like the don’t worry your pretty little head, business matters are better left to the mostly male managers.