The simplest solution would be to just stop putting credits on the listings altogether. But then Golf Digest couldn't write misleading statements like "Gil Hanse has redesigned the most courses in the top 100".
As a golfer I want to know who designed a course or "significantly renovated" a course. Names carry brand recognition which have value as a intangible asset. Using an architect's name that has brand recognition will trigger a positive reaction as they are associated with brand recall, which comes from one's own memory. Coke for soft drinks, McDonalds for fast food, iphone for mobiles, etc.
So therein lies the issue which needs to be standardized as the business itself wants to be associated with an architect which has brand recognition to increase their value to golfers and charge more (daily fee or private memberships). There is an incentive for the course owners to gain value by listing as many architects with brand recognition as possible, or perhaps only use the one who has the highest brand recognition. Why? Simple, there is no standard to regulate it and since there isn't they utilize it for marketing purposes which is aimed to increase their value.
It is like the FDA when they required food labels via a standardized set of guidelines to protect the consumer and equalize the playing field for competitors in each food category. They had to list calories of theirs vs ours, or sugar vs. high fructose corn syrup.
In summation, the magazines which rate the courses are the ones which reach the consumers and what we read for better or worse. Unfortunately they have an agency problem where they aren't required to create or use a standard and are incentivized by other means to list XYZ architect.
How to address this issue? It is complex and like the idea of the ASGCA or similar organizations to voluntarily come up with a standard as they have more knowledge and credibility if done as the professional society for GCA. If not we can just bitch and complain on here as our outlet.