Hope all is well with Ziegler and he isn't having personal issues
Just a stunning lack of judgment.
I believe Verge has an obligation to review work before July. Unless Apple has some super-speed HR-hiring process, it's safe to assume that Ziegler was doing interviews with Apple for at least a month prior, nevermind any time spent contemplating jumping ship and wanting to sweeten the process by directing favorable coverage to Apple.
Sure, you could argue that this level of introspection isn't used for all the other reporters who have ever jumped ship to work at the places they've covered, such as journalists joining the White House PR team. But this is the first time I've ever heard of someone deceiving their employer by hiding the fact of employment (rather than just the interview/search process).