I just struggle to see another way around the problem
Whats the problem you're trying to solve?
If it is merely winning then it's solved by importation. At this level winning is entirely secondary to the experience.
If its something else - such as learning to aim up - it isn't going to work.
Boiled down to its basics importation in this way and on this scale just tells everyone who stops to think about the issue that the solution lies in acquisition of more and better talent - from any available source.
The difficulty is that the "GPS competition" is no longer a level playing field: once it ran on the random variations inevitable from year to year. Now it runs on half the teams importing and the other half struggling.
Thats a bullshit competition - it only proves who was prepared to import more and fans debate like this as to when and why any given kid started in 3rd term of year 10 or 11 after coincidentally playing NSW U 16's.
As for the "opportunities" I'd invite you to make some inquiries as to the fate of a number of the imports once they leave school: I'm not going to mention names or outcomes because I do not think that is fair to those young men.
I also think it is unfair to them to use them to make the old boys, or even the parents, feel better by winning a competition that says more about recruitment than the ability of the school to educate, even in rugby.