I can see how you feel about it, but if you are against it you are basically being "ethnocentric" which means judging another culture by your own standards...it didn't look like the babies were being hurt in any way to me.
One tribal culture has a "right of passage" that includes building a tower and jumping off with a vine tied around your ankle. You're not supposed to hit your head only come close. Some people think that is strange and would never do it...others capitalized on the idea and brought us "bungie jumping". Same principal, just not carried to the same extreme...except they do it for profit.
IMO, let them do what they want with their children...somewhere along the line Darwin's Survival of the Fittest theory will kick in...:rockin: