I watched it a few weeks ago. Pretty interesting. The rescue was, for all practical purposes, impossible. It took more than two hours to swim to where the boys were, in an underwater cave with passages so tight they had to take off their tanks and push them in front.
The guys who performed the underwater rescue were doubly heroic because, had they failed, the Thai government would probably have prosecuted them for murder.
Taking your gear off to get through small passages is standard practice for cave diving, something I did all the time. But I never penetrated farther than a couple hundred yards, and I can’t fathom the skill and knowledge, not to mention the courage it took to pull this off.