No reason to really consider that as relevant here since if you consider it then you also have to consider that they’ve breached not only every potential contractor for the USG but also any company that matters.
I love the idea that the USG has simply backdoored Google, because it implies 1) a covert team of google3 shadow contributors, which is kind of funny and it must suck for them to not have platform support, but also 2) that the team responsible for micromanaging every joule that their datacenters consume, and charging back to every product group for resources used down to the nanodollar, simply hasn't noticed this ongoing campaign of bulk access.
I mean every big tech company of course: Google, Meta, Apple, Amazon, etc. but also they're going to have backdoors into companies like Boeing or perhaps 3M, banks, etc.
"Matters" in this context was related to national security concerns.