Yes exactly. And that is entirely right and proper.
Nothing of what Mozilla should be doing meets that definition. Even if they share data with 3rd parties to process it, and even if they pay the 3rd party for that service, they're not supposed to get something in return for providing the data. But also, providing data in such a manner does not mean they are selling it.
If they are getting something in return for providing the data, be it payment, other services or even simply a discount, then they're doing something wrong.
Ahh good ol Rossmann lol. I love him but I hate watching his videos, he goes far too ranty and repeats himself, it becomes hard to extract the real points.
Case in point, the video at your timestamp starts with an After-Before-Whatever rant before getting into any of the meat XD
I think everyone is really missing the points here. It isn't just bad PR, it's so bad that it can only be intentional. They didn't just claim rights and put them back, they removed their pledges to not sell data. The conversation isn't focused on the net result, the loss of the pledge, it's diluted elsewhere.
Maybe they're selling data to governments under law? I'm sure they already have terminology that permits them to do things legally required of them (so they don't need you to give them further rights), and the general process for the tech industry is to protest against such government interference up until the point a contract is negotiated where the government pays for access. In fact, I think this is generally what's happened with other businesses when their canary statements have gone away, as was revealed in the Snowden leaks.