The Chrome team says they're not going to pursue Web Integrity but…
it is piloting a new Android WebView Media Integrity API that’s “narrowly scoped, and only targets WebViews embedded in apps.”
They say its because the team "heard your feedback." I'm sure that's true, and I can wildly speculate that all the current anti-trust attention was a factor too.
I personally think that the end does justify the means. Sure Disney, Netflix and others might be concerned about piracy but at the end of the day they don't have much to say in terms of morals.