If you feel that Google is backing away from responsive search ads, here is a good sign that they are not – you can now create and edit RSAs int he Google Ads app for Android and iOS.
As you can see from the following image, if you have responsive ads set up, it will pre-populate the new RSA with existing headlines and descriptions. It will even show you the Ad Strength score at the top of the screen with suggestions for making improvements to it.
Available in the app is the ability to create, review, and edit negative keywords.