Completely agree. The only explanation I can think of for that being posted is that the writer is sufficiently senior that no-one wants to lose their job by telling him it isn't funny, or worse, it just didn't occur to him to bounce it around the office beforehand for a humour benchmarking.
Wait a second, at one point it says the interns are unpaid, and then it says they'll withhold their paychecks? If SlideShare can't even be consistent with their story about whether or not their interns are paid how am I supposed to trust them with my most awesome bullet-point laden PowerPoint slides??