>>The article is correct that this misses many important situations but it is still better than nothing.

I am not really sure its better than nothing - what it does do imo, is muddy the waters a bit for casual users, and perhaps make it seem like the customer doesn't really need to do as much securing themselves - because it is now 'encrypted by default' - giving a false sense of security - and as others have pointed out, really just protects against extremely rare edge case problems, i.e. the lost hard disk.