It says nothing about spyware, the article isn’t hyped up at all, and describes a token to track installations vs downloads.
"This data will allow us to correlate telemetry IDs with download tokens and Google Analytics IDs. This will allow us to track which installs result from which downloads to determine the answers to questions like, “Why do we see so many installs per day, but not that many downloads per day?”
Also there is an opt-out during installation.
I don’t even use Firefox, and I honestly am not attacking but your comment seemed very hyperbolic and with little detail.
You’re right that it’s good to be aware of this stuff, I also don’t see this being a road block for the average user.