It's wild how many of these so-called sabotage techniques happen daily in the workspace without even realizing it. I can’t tell if this website is being serious or just having a laugh. I don't know whether I find it funny or sad.

Is this a deep philosophical reflection on the nature of work and organisational behaviour?

Or does it simply reflect the fact a good sabotage technique is something you can get away with - and therefore it has to be something that happens daily in the workplace?

I guess it's nice to know getting logged out of my accounts in 5 minutes is just an act of sabotage. Strangely, I'm more okay with that.

That is, in fact, the point. You don't want to get caught/fired for sabotaging your company. The site suggests introducing additional perfectly explainable events which happen all the time, and are hard to assign blame to direct incompetence, but slow progress and cost money.