The VA is almost nothing but old sick people, the demographic most susceptible to serious COVID. Fortunately, most of the population isn't old sick people. The study you reference isn't relevant to conversations about the general population.
The view that risk from subsequent infections is negligible is informed by the fact that vast numbers of people have had subsequent infections, including most of the people they know. Personal experience around this is widely discussed socially, so there is a broad consensus that their personal experience was normal and not an outlier. I live in progressive urban enclaves, so if these people are all misinformed then your cause is lost.
Constantly misrepresenting the science around COVID and fear-mongering over things that are manifestly not the case discredits the people that promote that, which runs the very real risk of causing people to dismiss the real risks of COVID. We already went down this road with climate change, where chronic gross misrepresentation of the science in popular media caused people to dismiss the actual and serious risks associated with climate change.
Disasturbation may be fun but it is a terrible way to convince the broader population that a category of risk needs to be taken seriously.