LocalStorage data has always been in peril
Sure the bug and it's handling has been terrible, but localStorage, IndexedDb, WebSQL, etc data has never been entirely safe. For starters, Chrome has never included code that can handle/migrate this data when Chrome is downgraded. An Android user has always been able to remove a Chrome update and it's never been obvious what consequences this has for other installed apps. Phonegap/Cordova have ways to save data more persistently not linked to the Chrome implementation and if your data is important, this is where it should be saved.