Assuming that these claims are unsubstantiated, as the article indicates[1], what is the motivation for the Trump administration to put forward this bogus assertion?

[1]From the article:

A Kenvue spokesperson told CNBC in a statement that "over a decade of rigorous research, endorsed by leading medical professionals and global health regulators," shows there’s no credible evidence linking acetaminophen to autism.

Wake Forest University is a fairly prestigious private research university in Winston-Salem, NC. The costs of attendance (without financial aid) are normally almost 100k / year.

To be fair, if you imagine a system that successfully reproduced human intelligence, then 'changing datasets' would probably be a fair summary of what it would take to have different models. After all, our own memories, training, education, background, etc are a very large component of our own problem solving abilities.