Every one makes good points about the credibility of the current U/23 concept but the reasoning behind it's introduction needs to be remembered which puts every thing into perspective as to why we're where we are today.
In short it was designed with an element of "handicapping" behind it .With WA's Amateur competition in tatters in the late 90's and early 2000's, they were still able to field an open team and the Victorians were only to choose players from their Div 3 & Div 4 competitions and still with the U/23 age limit as with us. It was left open for some tinkering from the relative bodies in the hope that intra comp games would be closer in the score lines rather than the 20 goal plus thrashings that the WAAFL and the SAAFL were copping at the hands of the Vics so I guess if anyone has grounds to complain at the concept it's "the Big V ".
Those same 20 goal thrashings were making the Open Age State game less attractive to play in and the standard line about being injured/unavailable was very prevalent which then had a domino effect on the policing of that from the SAAFL by threatening the relative player/club with a suspension the following week.
Originally, the purists agreed to the U/23 concept with the condition that it was refered too as a "representative" side and not a "state" side per say but gradually the naming has crept back in prompting the original post.
The VAFA competition at it's best is not a 10 goal less competition than this state & I would imagine them claiming the need to have selection rights from some better Divisions in the future to bridge the gap and so the cycle continues.
The reality is that had all states been able to shoose from an open pool and not just WA, the posts on this website today would probably be to the tune of "why do we bother" because yesterday the result would have been markedly different.
I see the real issue being the naming of the concept to retain a little respect for the open age "state " sides from yesteryear that did earn the tag of being recognised as a state player