The entire argument was based on the idea that they won't move it until something horrible happens... but other than that, yeah, bad shit can happen anywhere. The idea here is risk mitigation. If this stuff sits indefinitely at these small storage locations something bad almost certainly will eventually happen because it will be there forever (practically speaking). The same thing is true at a central location, something bad will eventually happen, the hope is that you can push that off and minimize the risk of the bad thing happening by having only one location that has a lot of resources thrown at it.
Transport is hard, its a big deal and it is a problem for a lot of materials. There isn't much getting around that, but it is also a limited operation and you can take the best precautions possible. The question is what has the biggest risk, moving it or not moving it. The problem is that we, as humans, are very bad at assessing risk. The point of my post wasn't that it was the right thing to do to move it all, but that the decision will be made based on the reaction of a bunch of people to an incident happening and not based on a rational assessment of the options. We make decisions out of fear, rarely out of rational thought. Just look a the people who refuse to vaccinate their kids.