That's an example of a body of scientists changing its recommendations when there's data available to support it, which is what GP was trying to argue wouldn't happen because it'd make them look bad.

I'm not advocating for any kind of diet, though. I'm advocating for trusting the consensus opinion of multiple independent groups of scientists to determine what the data does and does not say about what's healthy.

There is no consensus. There are different consensuses. That group has a consensus based on false evidence. Nordic countries have another consensus based on real evidence. https://nordstjernan.com/news/food/4668/

That link recommends cutting fats, and increasing the amount of bread and vegetable oil. I can't take their advice seriously.

Increase the amount from a baseline of zero as a response to a trend towards paleo. Sounds much fairer that your reading of it.