Please don't return the article to a misleading and innaccurate title. The subject and the contents are not just about the hacking, but about the controversy over the e-mails themselves. That's what most of the coverage in reliable sources discusses, well beyond the hacking incident itself. So a return to the former title would be very misleading and innacurate. If there is a better title let's use that one, but this one is a clear improvement over the improperly narrow title that was being used previously.
An article's title must reflect the article contents. An effort was made to split off the controversy over the e-mails, but that was reverted. The present title is misleading as it addresses only the hacking, a small part of the coverage, and ignore the much bigger issue about what was in the e-mails and the ensuing controversy. I'm okay with having separate article on the hacking and the e-mails if that's the way to go, but we can't have a distorted article that is titled and stilted to address the hacking only as if the e-mails themselves aren't the center of the controversy and what makes the subject so notable.