The "Official list of phoned-home info revealed by Microsoft" is the subheading from the article, and offers a neutral tone compared to the biased headline of "The sheer amount of data Windows 10 Creators Update will slurp from your PC".

While general consensus will likely be that that it is too much data collection, it's more ethical - from a journalism standpoint - to allow each reader to decide that for themselves based on the facts. I find it odd that The Register used a biased headline, while delegating the unbiased phrase to the role of a subheading. I suspect the neutral subheading was provided by the author of the article, while the headline was manufactured by someone whose job it is to drive traffic/views.