Personally, I actually don't have any issue with any of the individual telemetry data, although it can certainly be used to fingerprint and for other nefarious

Personally, I actually don't have any issue with any of the individual telemetry data, although it can certainly be used to fingerprint and for other nefarious purposes, or even if it's opt-out instead of opt-in, but collecting it by default is definitely a new change. In fact, your link explicitly explains that you cannot control the extent of data collection now. ("There is just one control for data upload for Firefox") It also explains that this is a new change ("which is on by default.") Trying to spin this or casting aspersions on casual users who noticed a change won't change the facts.