Let’s say notifications are like walkie-talkies. You push a button, it sends an alert or your voice to the paired device. Neither one is storing the information, they are just relaying to each other. Now, in this case the government has issued a court order stating that a third party be given a walkie-talkie with the ability to understand the information transmitted by the first. There is still no storage being done, but a second party now receives all the information being broadcast.

It’s not about not having the information. You don’t actually need to store it anywhere to facilitate communication, at least beyond it being in memory which most would agree doesn’t constitute storage in this situation.

Now, could that third party store the information? Absolutely.