Is this a joke? Because that seems like exactly the wrong thing, and such a system would itself be a bottleneck for downtime issues.
Using twitter has the huge advantage that spikes in users in Spain for checking this stuff is a rounding error in the normal traffic so is very unlikely to take down the status page.
no one would/should prevent companies from using also private channels like X, FB, Instagram, etc but enforcing a public channel that doesn't require private citizens to register, accept T&S and share their private data with 3rd party, unrelated private corporations to be informed of critical, public safety information would be helpful.
Using twitter has the huge advantage that spikes in users in Spain for checking this stuff is a rounding error in the normal traffic so is very unlikely to take down the status page.