Unfortunately, reading through that document does not indicate to me that Apple has yet properly understood that they cannot engineer themselves out of this.
I’ve pointed this out before, but in principle, the damage is already done. They have demonstrated that they have created this tech and that they can deploy and use it. That is now public knowledge. They can swear they have good intentions all day long (and I’m inclined to actually believe that), but that won’t shield them from the pressure they can now be exposed to by authorities in countries where they can’t just walk away (eg. certainly China and the US).