Yes its puzzling why WGT's best course, Olympic doesn't fill up at tour legend tier, maybe its because Tour legends know you have to post very low scores to break even (you can loose $$ at St Andrews with a 59!) so TL's prefer to play the all tier tourneys where there's more chance to win.
Icon and the team are doing a very good job in picking ready go's as it is because i bet its more difficult than it seems finding courses that pleases all of us, and to mix them up each month so they dont get repetitive. Nice 1
At present there are six tour legend ready go's, iT might be a good idea to limit it to 3 or 4.