Perhaps there is a broader hesitation of non-USA coaches to do any referring. This, in turn, might be attributable (at least in part) to the more recent establishment of professional coaching in countries other than the United States (as well as Canada and certain European countries). If a new profession is being established, then there is often reluctance to admit to difficulties. Referrals can easily be interpreted as a failure and acknowledgement that other professionals can do a better job than we can do.
I offer a third possible reason. While all of the results obtained in these Development of Coaches Surveys must be cautiously received, there is a pattern related to the USA coaches being a bit more action and results oriented and more flexible in seeking to assist clients in finding solutions to their presenting problem(s). It might just be the case that the USA coaches are saying to their clients (in their words, actions or even nonverbal communication) that we (coach and client):
. . . should push forward and see what happens. If it isn’t working, then I can help you find another resource that could be of greater use in helping you solve your problem(s). We can always pass on the baton if it isn’t working!
This third possible reason might be closely related to the second that I offered. American pragmatism might be aided by a shared sense that professional coaching is established and here to stay: “there is no longer any reason to prove its worth. So, let’s not be afraid to refer!”