I consider it just a little reckless to be that casual. We discussed this general topic in an earlier thread a couple of years back and my opinion is pretty much unchanged.
I think it is great to introduce young kids to herps and teach them not to fear them. And I think the vast, vast majority of the time a tame Burmese python like that one (a notoriously placid large snake) is not going to be a problem. But letting quite young kids casually handle them when they are not physically capable of getting one off of themselves is slightly risky. Because snakes are basically very, very stupid critters and can get triggered at weird moments. Even just a bite from a snake that size is going to suck. If people get complacent enough that they let their young kid play with a snake like that then get distracted by a phone call when something goes south it could potentially be dangerous.
Such occurrences would be quite rare, but why take the chance? Have an adult handle and control the snake and let the kid touch it respectfully all they like. But letting one of the big constrictor species entwine around you is just not a great idea, even for an adult really.