The altitude would literally kill me.
With the editing, it's hard to be sure, but they didn't seem too well prepared.
Clothing, supplies, etc.
But you have to admire the feat.
the sleeping bags didn't look very "world travel-ish"
And having a set flight out date seems naive, not allowing for travel delays, mechanical breakdowns, pillow fights, etc.
but I'm warm and safe at home. Good on them!