Re: What the article leaves out
Sure, for that specific recording. But if you have two queries that both happened to be uploaded for review, one is "Siri how do I get to <home address> from here?" and the other "Siri where can I find donkey porn?" it is easy to link the first to you because PII is included in the query. The second can't be linked to you, because it doesn't have any information with which to do that, and there is no way to link the first and second query because they don't include a common "ID" or anything to link them as coming from the same phone.
The only possible way to link them would be if you could listen to ALL recordings and match by voice, which I doubt is any more reliable for either false positive or false negative matches than facial recognition when using an unconstrained search set.