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This is an overnight kit. It's not a one day kit or even a 72 hr kit.
If I was reviewing the kit it would as an overnight kit receive a solid good to excellent.
As a 72 hour kit I would rate it as Mediocre.
That is because there is NO provision for sterilising water.
As matters stand you will be dead or dying of dehydration, dehydration induced heatstroke or hypothermia, or dysentery before the 3 days (72hrs)are up.
If there was, which I feel means adding the tin foil component from the RSK I would consider it worth a Good to excellent rating.
I could and probably should quibble about the lack of sewing needles. But that is a detail.
I guess my view is it is all about playing the odds.
You have to weigh the chance of an incident against the trouble of going equipped for it. Everyone's comfort level varies, and I think most of the people on this forum have thought it through.
I'd expect an overnight kit to be enough for the majority of people in the majority of scenarios. I'd always suggest carrying more kit rather than less, but sit tight and wait for rescue, avoiding hypothermia is a good start imho.