We can only draw the obvious conclusion: Namely that Google plans to introduce a lot more ads once they have an iron grip on the consumer. If Google did that before Google destroyed ad blockers, regular people would indeed start to use ad blockers.
That's possible, but I think it's premature to think this is part of some grand plan. What likely happened is that Google estimated the cost to fund a team to shut down ad blockers was less then the money they were losing from ad blockers. Maybe it's part of a larger initiative, but I'd be hesitant to assume that without more evidence.
Remember that Google has established a pattern of hiding their true motivations so well that even lawyers can't find them (internal chats "off the record"), and they're in trouble with the law as a result.