If diving conditions revert to what they were like last week, that might make diving impossible with zero visibility, fast currents and much longer dives.
There is a launch window to do something before it starts raining again, bearing in mind, the monsoon season, once it starts raining again, the cave could be flooded for months, that’s why they were obviously thinking of getting in supplies for several months.
In terms of trying to fetch them out, I don’t know how they’re going to do it, there was talk earlier of training them to dive, that’s a bit of a long shot in the time available. One thing they might do, if they can take supplies in, can they bring the children out as inert packages, rather than them trying to swim themselves out.