I do think there is some risk (though I'm not sure how much delta it adds to the risk either way) that it plays into normalizing the proposals for tiering, a specific kind of non-neutral net, where ISPs would give you access to different levels of "internet content" based on your subscription level, like cable TV packages for the internet. Example: a few sites are available in the Free tier, a basic whitelisted set of sites (news, webmail, popular blogs, etc.) are in the Lite tier, everything but high-bandwidth video and torrents comes with the Standard tier, and the full internet is unlocked only by the Premium tier. The free tier would be made up of "content partners" who are a mixture of nonprofits like Wikipedia, and for-profits that pay for their inclusion in the free tier (CNN, maybe).
Which sounds like how cable TV works (at least in the US).
In the old days when city governments granted these monopolies to cable TV companies, part of the deal was community access channels (Wayne's World!). Even if these benefitted hardly anyone, they provided some moral cover and justification.
If I were an old media guy, I'd see Wikimedia Zero as the germ of an idea -- maybe suggesting a way how to squeeze the genie back in the bottle and wrap the internet in a cable TV model. And, hey, in the US most people's ISP is also their cable company. So ... I don't see it as a definitely bad thing, but I see the seeds of potential bad as well as good.
(In general, a lot of bad stuff flies under the flag of a good cause fighting some other bad thing -- "because terrorism", "because children", "because hyper-inflation", etc. Of course a lot of _good_ stuff also flies under good flags. I'm just saying it's not obvious either way.)
