I don't see how this does either of those things. On insulating him, it's not like Apple ever cared what public opinion was. They just spent the last week basically pushing back against their own developers. So if they want to fire him they'll do it public opinion be damned.

As for proving it was an innocent mistake. I don't think it does that either. If I were an Apple engineer and I just sold the newest iPhone prototype I'd ask the news site that broke the story to claim it was someone else too. Plus, it's gawker media so most believe they would be dishonest enough to lie about their source.

I'm not saying that's what he did but if I was already suspicious of him that story wouldn't make any difference.