I would be very unhappy if a SAR was not started when two SOS's were spotted and ignored and a family member or friend died.
Blame, point the finger at whomever you want. The bottom line is this; Anytime any unprepared person goes missing, had they been equipped with a PLB or SPOT and were properly prepared for the expected weather, terrain etc, the outcome would be much different.
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Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.
John Lubbock