1. This is not a problem with Google's Customer Service, it is a problem with their vendor relations. When Google publishes ads on your site, you are selling that space to them. Google is your customer and isn't obligated to tell you a damn thing except that they don't want to buy from you anymore.
2. There is a market opportunity here for an ad network that is willing to find good sites dropped from Google Adsense by erroneous algorithms. And that can appeal to the news herd (all the traffic driven by reddit, hn, slashot, digg, etc.) with either brand advertising or targeted ads designed to appeal to surfers from those sources.
The thing is, from a strictly mathematical point of view Google may be perfectly correct, the 100 visitors a day coming to the site while looking for robotics news may have been more valuable to their advertisers than 10,000 stimulus hungry nerds that don't buy shit. And while it's hard on the site in question Google is playing for the percentages, not sheer volume.