I think the comment is referring to the Court’s precedent of “chevron deference,” which is the idea that courts should defer to government agencies to decide how to apply laws whose meaning may be unclear.
Imagine SCOTUS thinking that Congress would have time and capability to pass a law on every chemical that the FDA has banned over its existence in order to protect the country. We're talking about the same group that contains people like Gaetz, Boebert, and that dude that thought you could capsize an island.