@jenniferplusplus I guess it's because Mozilla setting up a server at all was seen as "proof" that the Fediverse was the future. If it wasn't, why would a recognizable name like Mozilla bother with it?
So shutting it down is, by the same measure, "proof" that the Fediverse isn't the future anymore. Because projects can only be a world-spanning success or absolute failure. No in-between.
That's a terrible way at determining what the future is, but it's how a lot of people approach it.