I dont think Zitron has predicted anything 5 years too early. 1 or 2 at the outside is probably the limit.
I remember during the original internet boom the people who were given the most shit were the ones who predicted the bubble popping a year or two early.
Zitron fits quite neatly in this category: most of the predictions of his Ive seen that are "wrong" are things which could still happen and things where he gave wrong timelines.
Realistically identifying a bubble and the stupidity associated with it just requires an ability to do the research and see through bullshit. identifying even roughly when it will pop really needs a crystal ball. Mass human delusions do not collapse in a predictable way.