This is perhaps the most well studied and validated data set that any government has ever produced. Their methodology and techniques are documented to the nth

This is perhaps the most well studied and validated data set that any government has ever produced. Their methodology and techniques are documented to the nth degree. "they" will admit whatever you want them to admit because they are stone cold professionals that are scrutinized by every political hack in the country and their datasets are poured over by teams of financial analysts across the globe every time they are released. You are an internet commenter that couldn't be bothered to read the summary of the article outlining some of the issues with their data collection, where the very first bullet point summary mentions its survey based. Perhaps you shouldn't try to argue from first principles without reading the _extensive_ documentation of methods and reports the BLS puts out. Lots of us have.