When you read an article like that and it enters your mind that maybe it’s a stunt, it the same process as conspiracy theory. You believe that it could be a likely scenario and look at things that way in everything you see. There is nothing in that story to suggest in any way that it is a stunt or conspiracy to discredit a proposal regarding teachers carrying guns.
The point is that your brain has no basis to consider the possibility, much less conclude that it could be and then state it publicly. Only the underlying assumption that somehow it could be morphs the interpretation of the evidence into a justifiable consideration despite the obvious conclusion that it isn’t justified.