Just watched this today. I hadn't heard anything about it since the first trailer so I gave it a watch and honestly enjoyed it.
It's not so much focused on the weather/disaster aspect of an event like this but the lives of the people it affects. Yes the character introduction takes a lot of run time but it helps ground you into the lives of these people.
As an amateur storm chaser I always want to know about the people tornadic events have an affect on. This movie does a great job at showing that.
It's not about our differences but what brings us together.
4/5 stars for accurate depictions of sever weather events and the people who go through them.