The topic of this thread is COVID-19 and WDW, but again this sounds like the same ”seemingly contradictory data renders all data unreliable” line of thinking that others continue to use to minimize the need for pandemic responses.
The links you shared show that what we’ve learned more about things like fat (the difference between trans fats, saturated fat, etc) and cholesterol (the difference between good HDL and bad LDL) has provided further clarity as to specific effects these things have on our health.
In the same way, the more we learn about the coronavirus, the better we’re able to discern the risks and how to mitigate them. We’ve discovered that things like indoor dining carries a high risk of transmission relative to things like waiting in outdoor attraction queues. WDW has tried to implement measures to reduce these risks, and the more we learn, the better Disney is able to invest in things that can truly keep people safe.
Learning more is always better. Nuance and detail might seem like contradiction, but if we’re willing to suffer the complexity, the data can help us make better choices.