Nah. All app promotion apps that are affected are ultimately sending sales to the official App Store anyway, so there's no impersonation of the payment channel.
It does affect a class of apps, including AppShopper (mine).
It does affect a class of apps, including AppShopper (mine).
However, I will then point out that the distinction you are drawing can get somewhat vague: just because you aren't accepting money, doesn't mean users aren't now confused because they think they are using the App Store's interface; as an example, they might have expectations such as trusting the validity of the reviews and ratings being shown.
If I had to guess at their motivation, it would be their attempt at blocking paid-for-promotion schemes that try to game the App Store ranking systems. I think that's more likely.
As a user and as a developer, I really hope these changes help move some of the blatant junk off the Top Lists.
I could see it both ways - on one hand AppShopper is straight forward, isn't obviously attempting to impersonate the app store and adds value.
But I can also see how it could be read that it would be the sort of thing they're thinking of (though I've no idea why).