w3c, back in the 90's, made it so that everyone who uses the Web does so in a uniform way -- for the most part -- using standards and agreed upon protocols (xhtml, http, tcp/ip, etc.)
Do you think they were malicious in doing what they did back then?
Anyway, I don't think Bitcoin Foundation will "adopt" zerocoin. If they do it, US government and "banksters" will make more pressure to Bitcoin.
So, Zerocoin will be an useful tool for those who need it, no more.