Not sure why you're being downvoted, the events are already evidence that the facility was not shut down during a tornado that was known to hit the area. Workers were changing shifts when the tornadoes hit.
This site has a very anti-labor bias, as most people here expect to be running companies (or already do).
"This site" has a very strong dislike for politically motivated speculation masquerading as fact.
Both you and the parent could be correct. I see a lot of spurious speculation in various forms but only certain speculation is more likely to get downvoted. Case in point the speculation surrounding the motivations of some unknown anonymous poster downvoting the grandgrandparent based off of extrapolating from other downvotes elsewhere.