to answer a question semi-reasonably, what equipment are you expecting them to wear? a neo-furry and PVC oversuit? wellies and marigolds?
the caves in SE asia are pretty damn warm. Those used to trekking on the terrain around here will wear sandals/flip flops no problem on sections that those around the world wouldn't dare to.
As somebody else has mentioned, of course they were underprepared/ill-advised/misguided to go in at this time, but most people who are rescued are, it's kinda why they're being rescued.
I don't understand the comments about the football team, world cup, england, heroes nonsense.. have you had one too many?
You started this thread to see if anyone else shared your insane opinion about it being a set up, I think you've found the answer to your question, even indirectly in sarcastic responses, now kindly do us all a favour and crawl back into the hole you came from (definitely pun intended)