His attack on Google's collusion with evil Wikipedia was definitely after the fact.
His calling Google a monopoly and to use DuckDuckGo was a few days before, but Google usually signals upcoming changes, and he has to have a serious crew of Web developers who would have been watching for hints - so I very seriously doubt this was a revenge thing.
Also, Mercola made no hint about it being a revenge thing, his attack was strictly against Wikipedia's biases.
His calling Google a monopoly and to use DuckDuckGo was a few days before, but Google usually signals upcoming changes, and he has to have a serious crew of Web developers who would have been watching for hints - so I very seriously doubt this was a revenge thing.
Also, Mercola made no hint about it being a revenge thing, his attack was strictly against Wikipedia's biases.