So we're to assume that the Prima guide's info concerning the Reporter and how many Customer Loyalty points he/she needs to gain is BS?
Always. The Prima Guide should always be taken as nothing more than speculation. What else can you expect from a book that was printed before the game even existed?
What I expect from it is a general gameplay overview that I cannot get anywhere else (and I have looked, because I'm always running into people who really desperately NEED a gameplay overview because they have no idea how basic elements of the game work, and I'd love to have a decent free one to point the broke ones at -- if you think the Prima guide is bad, you should see what some of the stuff on GameFAQs looks like, and those were actually based on gameplay), and a description against which to test behavior rather than doing it blind (if it turns out to be wrong, which it inevitably will on a certain number of issues, at least I had a starting point to figure out 'oh, they said it did this but it actually does that' instead of 'damn, how the hell is this SUPPOSED to work?').