Typical "legacy application situation where no team is assigned to" here. At least I've never seen in my 15+ year career a legacy application, which has a very good maintenance/testing model in place. It will just not work because maintenance/testing needs also resources and updates, but if priorities are in different places then it's not possible. Of course as stated already multiple times - things could have handled in better ways, but this doesn't mean that Google should not allow to stop release at least. Anyway, lessons learned.