New order from Hamas regarding hostages

I just saw on the news that Hamas has issued an order to kill any hostage that Israel tries to rescue. https://www.theyeshivaworld.com/news/israel-news/2310993/hamas-threatens-to-kill-more-hostages-if-israel-uses-military-force-for-rescue.html

So much for the rules of war and fair treatment of prisoners. I think this spells the end for the remaining hostages unless there is a breakthrough in negotiations.