I cannot open the link you provided, but based on the only source that I found on the internet, I think this might be true that the next pandemic could be caused by the meat supply in the U.S.
The author Karen Weintraub claims that many diseases including HIV, Ebola, and COVID-19 are zoonotic diseases, that are caused by poor hygiene. She predicted the next pandemic will also be zoonotic disease, and the disease is more likely to be spread by pork instead of birds. Studies also show that the U.S. has a higher number than other countries, in which pork is more likely to be the cause of the flu.
“While Americans often think "it couldn't happen here," regulations are so loose and interactions so frequent, researchers found, that a virus or another contagious bug could easily jump from animals to people in the U.S., sparking a deadly outbreak”.
The workers are particularly vulnerable because of the lack of regulations to protect them. Linder and Winders also point out the lack of industry transparency, there are about 220 million wild animals imported to the U.S., but the details about the situation of the animals or the industries are hidden from the public view, which people are not able to monitoring or control the industries carefully.
Furthermore, because there is only one available source I can find online, I look at the description of the author. The author is Karen Weintraub, who is a healthcare reporter for usatoday.com and has published reports related to health and science in The New York Times, The Washington Post, and ScientificAmerican.com. She is also a professor at MIT and is the co-author of her book called “Born in Cambridge”. Based on her biography, I believe this news report written by her is reliable.
Deadly, COVID-style pandemic could easily start in US, report finds (usatoday.com)
Karen Weintraub | AcademyHealth