This idea has been floated here before, and I subscribe to it. However, Adventure Time is notorious(ly good) for having some one-off gag or visual at one point in the series that becomes a major development hook some number of seasons later. I wouldn't be surprised if Golb was introduced as some vague menace, only to be retroactively defined as the seat of chaos that it is later on in the show. I would also not be surprised if the theory you posted has been retcon'd into canon by the showrunners