It's just that a slippery slope can be constructed for any problem. The ability to universally construct a slippery slope results in absurd conclusions. Either no changes can be effected(a universal maintenance of the status quo), or slippery slopes are an invalid method at making conclusions. That's why they are categorically uninteresting.

I'll use this conversation as an example to demonstrate the absurdity. If you accept someone's argument on one topic then you may find yourself agreeing with other things they say including some terrible conclusions. Therefore, it's better to never accept anyone's argument. There are much better ways to discern whether to accept or reject an argument.