It's kind of funny the FDA spokesperson criticizes his position as "selective", it's all selective. For every study finding one thing, you can find another finding the opposite. Same is true for whether vaccines reduce the risk of long CoVid, they definitely don't prevent it, do they reduce the risk? Hard to say definitively.
Also from the article, only 15% of eligible people have received the latest booster. This means that 85% of eligible people aren't trusting the advice of the CDC and FDA. Sort of reminds me of a guy on a podcast recently who was talking about how people in Russia have a very skeptical attitude towards government communications and news. Public trust has been eroded, and that's not good.
Link: https://www.nbcnews.com/health/health-news/younger-healthy-people-dont-need-another-covid-booster-vaccine-expert-rcna65324