I watched the video dutifully and nearly died laughing. The narrator clearly has minimal experience, if any, in hiking or backpacking, even in normal circumstances, much less emergencies.

A three day backpack is a relatively short excursion, very easy to equip. You certainly don't need a fresh pair of pants each day, and they certainly would not be cotton blue jeans. I coadd go on....

This is a perfect example of why I don't waste my time on Utube videos. I have better ways to waste my time