Sure WPTT could be called an affiliate of AA technically and it would not be an incorrect statement. They could also be called a Salem (Mike Gallagher), Premiere (Matt Drudge, George Norry), Jones (Clark Howard), Fox News (Alan Colmes), and Talk Radio Network (Laura Ingraham) affiliates as well, but I doubt that AA would explain that to their advertisers.
The casual listener doesn't care who screens the call or whose bird it comes from. If they liked Thom Hartmann when WPTT first started airing him, they aren't going to be talked out of listening to him simply because he has a new syndicator. Advertisers are a different breed however. Many national spots that come down come with the stipulation that they can't air in AA programming (or any other controversial programming for that matter). And the suggestion that AA has added stations is misleading in that for most of the Thom Hartmann stations, the hard work was already done, he was on the air on many of them and AA just picked up the show after the fact, rather than a bunch of stations went out and started picked up the entire AA programming package.
If anyone wants to listen to AA, and they tune to WPTT to do so, other than that particular three hr window M-F, then they are going to be sadly disappointed.