Privacy advocates and privacy caring IT specialists have repeatedly asked Apple to offer such an option, but so far Apple has decided that regular people would turn such an option on, forget their password, then ask Apple for help and would be unhappy with their brand experience if Apple could not help them out.
If Apple would implement such an option where Apple could not access your data, shenanigans like the ones outlined in the article could not happen. It would also allow people who feel the state will misuse their info use iCloud for the first time.
There could be something good that comes out of this. These bad news could pressure Apple into finally offering an optional iCloud service where only you can see your data.
Answers to likely responses: "just use a different cloud service": on iOS, for cloud backups, there are no alternatives: it's iCloud or nothing.