In absolute terms your argument is valid but I doubt they will use it against a situation where a single link got hijacked. Its more to have the legal framework to go after sites who systematically (and intentionally) link to pirated content.
The law says it’s only copyright infringement if you know the link contained infringing content, and if you make money with it that’s counted as "you know".
That’s all it says – this website is again blowing everything out of proportion.
