Who wants a stylus when it can apparently damage your device if you make the honest, and I’d guess common, mistake of putting it away backwards?
Samsung has also issued a response, as reported by The Verge:
We highly recommend our Galaxy Note5 users follow the instructions in the user guide to ensure they do not experience such an unexpected scenario caused by reinserting the S pen in the other way around.
Translation: we admit no guilt and if your device ends up broken, it’s your fault.