Recently saw a post where someone who has been making PSKs for a while proposed that the only thing in a PSK should be fire starting, water collection/purifiation, and maybe a knife or signalling capability. Anything else is extra stuff.

The idea is a PSK is a last ditch get you fire and water. If you got fire and water, you got life. All else is secondary.

In one hour of surival training, I would stress those ideas. I believe the addition of a large trash bag in the back pocket provides shelter at almost zero cost, weight, and size. Poncho, water collection, rain protection, stuff it with debris to make a matress, stuff it with debris for "down Jacket", etc.

I would also encourage them to learn basic signalling techinques of whistles, signal mirrors, gun blasts, etc.

One hour is not much time to go through everything in detail. I would push the basics and enocourage them to search additional information and give them this and other website as sources.