Read the article, that's not true by default, the only way you get that level of cryptographic protection is if you enable "Advanced Data Protection". None of the people in the article did that, all of them can trivially prove they are who they say they are via government documents, Apple could decrypt their data and return it, but Apple is refusing to do so.

It's simply not Apple's responsibility. Person's data, their responsibility. Any other way and people lose trust in Apple which BTW they protect it by any means. Trust.

Instead of wanting something impossible, accept the reality.