Agree. The aviation survival vest I wore back when flying was primarily about flotation. The kit in the vest was primarily about signaling — no food, no water, just a PLB, marine VHF radio (Ch.16), signal mirror, strobe and a couple flashlights. Fortunately, I never had to test mine for real.

There’s another thread here regarding a Spontaneous Immersion Kit. As I recall, my point was that first you need to egress the car/truck, after successfully free of the sinking steel, you think about survival niceties such as getting to shore and not freezing to death in the process of waiting for 1st Responders — first you need to survive your initial contact with the water. Otherwise any kit is pointless.

With my aviation vest the idea was not to survive at sea, it was to aid rescuers to get you out of the water. No survival kit fits all, they need to be fine-tuned to their intended situation.