Probably the most basic market-study of all, Bill. Last time they whipped one up, they put it out there, and it didn't sell well. So, they're not so quick to do it again.
That seems to be the way the Little Three function and it's certainly the methodology they consistently quote.
And who's to say they're wrong? Only Moebius is flying a different flightplan, IMC tried and failed, and maybe Meng is on that path as well.
Time will tell.