I'm sure Slywriter knew the difference, and probably meant "... are not sources that establish notability". You're right though, a more polite and detailed message would have been more appropriate. It is difficult to do that in every case, considering the sheer volume of drafts and the low number of reviewers.
Edit: Sorry. I wrote this thinking you were replying to my edit but on more careful though I realized you might have been replying to my original comment. If this isn't a reply to the edit please disregard all of this:
Saying the article fails due to only primary sources when it has secondary sources is flat wrong, though. Simply reading the list of references would have cleared this up. Despite volume I find that inexcusable. I'd expect a reviewer to at a minimum read the first few hundred words and then skip to the generated references list and skim for source type.
