That’s not really why the market is reacting here, thats an old story as the potential monetization phase has already been replaced by actual monetization. The new story is that a bunch less people are willing to spend on ads at all, specifically citing broad market constrained budgets due to inflation and supply chain issues. This is a heavy indication of the state of many sectors, pretty fascinating ripple.
Also Apple protecting consumers and democracy from ad targeting is working, at least against Facebook.