Not that I disagree, although I feel the problem here is that this clause then can apply to all types of softwares. And even hardwares too. Just think if tomorrow Apple says that you cannot talk about degradation in performance in iPhones (because battery capacity reduces over time or something). We both know this, like we know that a user's experience will differ from the other. A company shouldn’t be adding a clause to prevent talking about this, it sounds like a malpractice to me. (I know it’s not that serious but still…)
That would be one legit reason for thinking about writing this clause. Because it’s really curious to think about writing that.