Inside AdSense: A word of caution

From the blog post of Adsense blog Inside AdSense: A word of caution here is an excerpt

Of late, we’ve received a few emails from new AdSense applicants about not being accepted into the program despite paying a specific amount of money or buying a CD package.

We’d like to take this opportunity to state that we're not affiliated with any third-parties that solicit payment to join the AdSense program or that sell CDs with money-back guarantee offers. AdSense is a free product offered to publishers by Google Inc., and there’s no cost or obligation involved. As a result, we recommend that prospective publishers exercise caution when presented with such offers.

Google seems to ignore the fact that these third parties use Adwords to advertise their schemes. Isn't Google partly responsible as these ads which appears on its sites makes it seem like Google endorses these services or product or affiliation.