I'm sure this is secretly considered a feature by at least some people inside of Google. Safari's share of the market is already quite small and most MacOS user

I'm sure this is secretly considered a feature by at least some people inside of Google. Safari's share of the market is already quite small and most MacOS users are able to figure out how to install Chrome (most do so already). If sites magically stop working in Safari, it helps to drive more of that already-weak marketshare to the "just works [because we broke it]" alternative of Chrome.