This sounds very similar to Malcolm Campbell's attempt to create a Links Golf lobbying group in Scotland. The numbers in Scotland probably also have a similar Pareto relationship (i.e. 20% of the courses create 80% of the income) but given that most of the best courses which contribute to that income (i.e. Muirfield, Old Course, Dornoch, Troon, Turnberry, etc.) are already nearly fully booked and there are very few pieces of undeveloped linksland which are both accessible and avaialble for new links golf courses, I can't really see the purpose of such initiatives. Rather, what Ireland and Scotland ought to be doing is promoting the excellent non-links courses which they have and which are starving for visitors.
PS--it is ironic that the picture which leads the article is of a course (Ardglass) which is only partly (if that) a true links course.