You are right of course and that is why I said they will still be very lucky to get out alive. They don't even know how to swim and must be quite weak already.
Somehow I do not see keeping them there till September, with water levels possibly rising further, as much of an option either.
The water levels might not rise further, and there's also the drilling option. There's even a chance that the water will recede enough to walk out; the weather report for the next week or two has ~no rain.
It's far too early to assume that only the most dangerous option is an option at all.
Somehow I do not see keeping them there till September, with water levels possibly rising further, as much of an option either.