The demand for many experiences is growing too quickly--Everest, Camino, Burning Man, USA National Parks, Sturgis, Great Wall, etc. The administrative folks running these 'events' are trying to limit the demand to avoid overcrowding. I do not see a perfect solution anywhere between a pure 'capitalist/market' system where prices increase until the demand is throttled (doesn't work on Everest climb even with $10,000 permits) and the 'socialist/planning' where resources are administered by policy (donativo beds until full).
I have also been involved in white water rafting and Elk hunting-both of which have restrictive lottery/permit systems, In Oregon, you can draw/win-the-lottery for an Elk hunting permit about every third year.
Of course the Camino is a Econ101 example of something highly desirable with almost no cost to allocate the resources (beds). The users can grow to infinity!! And I believe the low cost is driving the demand almost as much as the publicity from movies, vlogs, blogs, books, and forums.
I count my blessings in having the Camino on my bucket list while it was not so mobbed!! I will walk again but moving more and more to the ever shrinking shoulder seasons or not-CF routes where the competition for resources is not so severe.