First, You can't "flee a tornado" like you can a hurricane or a tidal wave. As a matter of fact this is one of the most incredibly dangerous things you can do. Your car is the most unsafe place as you're completely exposed to flying debris (the killer in tornados), and if you get in a traffic jam (which a lot of people 'fleeing' would cause), you _will_ die. Golfball to softball sized hail will destroy your car and render it immovable. You'll be stuck in the open and you will be injured. This happens _literally_ every time there is a severe weather event: someone tries to flee, and they die.
Second, tornadoes have a relatively narrow damage path and tend to travel in straight-ish paths. What's unpredictable about them is when they are actually "touching down" and that's what makes then dangerous. A formation can drop to the ground unpredictably and suddenly, then lift again. this can take place in under 15s and it can cycle several times every few minutes. This is what makes them dangerous and it is irresponsible, ill-advised, against recommendations from experts, and incredibly foolish for this news paper to be promoting this sort of content.
Source: I've been outdoors in tornados, in high school I've worked with trained weather spotters with the National Weather Service, and this is general knowledge for anyone that grew up in Kansas.