They were calling attention to the problem, not proposing a solution. But calling out a problem is a call to action for people to try to come up with a (or multiple) solution.
Just because there isn't certainty that it would happen like this, doesn't mean there's not a possible future that looks somewhat like this. Nothing that was listed here seems particularly far-fetched to me, I don't think.
Done. So they're calling out things that could happen, driving the point home by placing them in a timeline. That makes the issue top of mind again for people, potentially spurring them into action - even if just by e.g. making it one of people's considerations in their next election.
Just because there isn't certainty that it would happen like this, doesn't mean there's not a possible future that looks somewhat like this. Nothing that was listed here seems particularly far-fetched to me, I don't think.