I just read the entire article and I don’t see why Mozilla really wants in on the Fediverse. It covers a lot of how it wants in, but not the driving motivation.
My best guess is they want to be the next Facebook/Twitter. They see a window and think it’s not something to miss.
Never forget: “Embrace, Extend, Extinguish”, even if it’s from a relatively liked company like Mozilla.
I mean, we all probably said similar things about Google 20 years ago. It was a liked company that brought a lot of cool innovations to the web. Or even relatively more recently with Chrome. At launch it was liked, but now it’s weaponized.
To be fair, there are far, FAR worse players than Mozilla. I might even be so far as to be convinced they have benign interests at heart at the moment. But corruption always follows domination.