Quick let's replace this centralized service that goes down sometimes with a group of centralized services that go down sometimes.
Matrix being federated does absolutely nothing to solve this problem since there's no failover if a user's homeserver goes down. It just limits the potential blast radius but if matrix.org went down Matrix might as well be down for most people.
> There is no single point of control or failure in a Matrix conversation which spans multiple servers: the act of communication with someone elsewhere in Matrix shares ownership of the conversation equally with them. Even if your server goes offline, the conversation can continue uninterrupted elsewhere until it returns.
So right now, if you're trying to message someone via either whatsapp, facebook or instagram they will all fail, most likely because of the same issue as they are run by the same company. If you were on Matrix, you would for sure be able to find a way of reaching this person even if servers go down, that's the entire point of federation in the first place.
I've been looking for data around how many people actually use the various matrix servers, but seems you have it already. Could you please link here so I can see it too?
True, but it makes a difference between a single Homeserver not working any more and the entire global service.
This likely won't ever happen.
> matrix.org went down Matrix might as well be down for most people.
not really (afaik less than a third of public(!) users use matrix.org)
Also consider ongoing developments of distributing accounts on multiple servers (which may also reside on your device) for P2P Matrix. This gives additional redundancy.
Matrix being federated does absolutely nothing to solve this problem since there's no failover if a user's homeserver goes down. It just limits the potential blast radius but if matrix.org went down Matrix might as well be down for most people.