Now Chrome will have the crippled adblocking capabilities of Safari. This is the browser equivalent of removing the headphone jack — removing a feature many people use to get some security benefit for a few. The problem for Google is that unlike Apple's customers, you can't pee on a Chrome or Android user's back and tell them it's raining. No Android user was happy the headphone jack went away just because there are wireless options.

Since Google controls the extension distribution system, it could just as easily plastered extensions that use this API with scary warnings, so only users who knew what they were getting into would install them. It's not like users install so many extensions that use this API that they would start to ignore the warnings.