Though this article is political, the revolving door of Government/Lobbyists/Industry is a long-standing bi-partisan method of filling those jobs. It was there in 2015, but I don't remember hearing about a corn syrup and snack food lobbyist writing the final draft. As Nestle wrote, she didn't think it could get more political, but it has.

We complained about the last Advisory Committee, filled with many low-fat, high carb entrenched academics, but now Frank Hu from Harvard is looking good. The last committee did advise reduction of sugary soft drinks, sugar in snack foods and taking soda out of schools, but when the report got to the writing committees, that advice was buried. Marion Nestle, who was also on the last committee, and no low carber, did a review comparing what the Committee wrote, to the final copy after the USDA and HHS writers did some PR crafting on it.

https://www.foodpolitics.com/2016/0...t-hard-to-find/

So even if by some miracle the Scientific Committee finally allows one expert in low carb on the panel, when the final copy is written by a 28 year old corn syrup lobbyist with no nutrition science background, it will be little more than an industry PR campaign.