That is not really comparable, as that was improperly made (and probably low alcohol content), whereas the article is about whisky that, presumably, was properly made. It is one thing to make something that in the making of it creates poison, and it is an entirely different thing to break the seal on something that is properly made. And it is one thing to have botulism in a low alcohol setting, and another to have it in something that is likely 40% or more alcohol. So that makes two ways that that is not a good analogy for old whisky. I would not hesitate to drink whisky that was 100 years old and did not appear to be contaminated. If you find some in your walls and do not want it, give it to me.