I'm kind of confused about what the hangup is in this conversation...
If you look at the drafts since 2001, you'll see that there have been 35 players who were international, non-US college players selected in the first round of the draft that went on to play in the NBA (I don't have info on Vasquez, Karolev, etc.). If Yi had been 19 (almost 20), he would have been in the same category as risks such as Tskitichvili, etc. If he was actually 22, (almost 23), it's a little different. ONE PLAYER since 2002 has been drafted in the first round from overseas who was 22 years old...Thabo Sefalosha (22yrs, 1mo.) Going back to 2002 nets you Yao and Jiri Welsch.
Yao is the only pick higher than 13 in the last 8 drafts has been international and 22 (or older). There have been 12 internation picks in the lottery higher than that, but all of them were 21 or younger. So whatever the correlation b/w skills vs. upside, or what the curve looks like, etc. is moot...NBA GMs have shown through history that 22y/o internationals don't get picked in the lottery (unless you're Yao), while 19-21 y/o internationals have been averaging about 2 per year in the lottery. So my take is that there was an intentional effort by Yi (who certainly knows how old he is), his agent (who should have checked) and potentially the Chinese gov't to defraud some NBA GM by having Yi picked MUCH earlier that he would have, having that owner defrauded out of millions of dollars that would not have been required to choose Yi at a later draft slot (which his age and status would certainly have borne out).
To say otherwise is trying to spin it away from those with responsibility. If the Players' Union fights this, they are complicit in the fraud. If the team decides to keep playing him, fine. But this isn't an issue of "who cares". The issue seems to be "Yi is a fraud".