I hope you are correct about the section around sports scholarships disappearing.
If the GPS want to market themselves as the premier school grouping then they need to show they are the best in every competitive experience...inside and outside the classroom. They have a brand to protect.
My two cents on this.
The AAGPS don't need to 'market themselves as the premier school grouping'. They'll always be so simply by dint of the member schools all being among the oldest & most prestigious sandstone colleges in the country. No other association of schools comes close.
They don't need to prove themselves the best at every competitive experience to remain the most elite group of schools and even if they did, sporting scholarships isn't the way to go about it. A few individual scholarships does not create a strong & successful sporting culture.
Notorious instances of schools loading sporting teams with scholarship talent poached from Yr 10 or later have usually been about success in a particular landmark year (e.g. centenary or sesquicentenary) but success on that basis alone is never enduring and can be to the overall detriment of sporting development.
That said, I've no problem with a few scholarships spread over a number of sports within sensible limits, just as with academic, artistic or musical scholarships. What concerns me more is the growing number of kids being parked in GPS schools by NRL clubs who are able to dictate to schools when these boys can and cannot play.
The only winner there is the NRL, at rugby's expense.