In my experience in the Psychology field, AKA where nearly all "studies" are made, a high level executive says something and all of the grunts are then scrambled to find a way to make that true. If a rich politician wants to rail against violent games, a bunch of grad students desperate for a buck will get him a study saying games make you violent.

There is little "original" thought just vague ideas of what those in power want and those who give them the details to fill in that plan.

For Corona, they probably got some vague medical info and possible solutions, then wrote that plan to their benefit and had the info "updated" to better suit them. Still vaguely correct, but also massively into their playbook more so.