We have more "regulatory factors" in Europe, and much cheaper treatment... Like 1/40 or so as much in this case...
The American culture is one of rugged individualist pioneering cowboys who won't be told what to do, even if you're warning them that if they take another step they'll fall off a cliff.
Honestly when I read the headline my first thought was “six stitches? Crazy glue is cheaper…”
Unless you live across the street from the hospital it's just less hassle to do it that way. Any injury not worthy of an ambulance can be cleaned, glued and taped in the time it would take to sit in the waiting room while they serve all the people who are dying faster.