Must’ve been, I can’t think of any reason to report otherwise if that wasn’t the case. Maybe it was freeze-dried or dehydrated and very compact, like from those prepper supply places. They had an onboard water system so water was not a problem.
Oh I missed where they had an on-board desalination system...Are those common on boats?
If that is true, then yes dehydrated foods plus whatever then could catch would probs sustain them—not sure about dehydrated dog food tho...also wonder about “walking” them lol...