1. Does Twitter even know about this?
2. Did the transportation minister bring this to Twitter? I mean, if it's such a big deal, is it worth a ring, email, or DM?
3. Did Twitter refuse to uncap it?
I don't know if the reporting is sloppy, or if there is an agenda, or whatever, but there are acknowledgements by the government that they were lazily relying on Twitter without any kind of formal arrangement.
If I'm handling comms for the ministry, I would go to twitter with a public weal request that it designates critical information accounts with no practical rate limits and that are visible to all without sign-in. They have the capability. Someone needs to initiate it.