I am reminded by the locals there are claims that every Win RTM Release is different from the officially released Win disk.
There were two Win versions that arrived without HP Printer Driver Support because Microsoft sent out RTM versions with a Driver Definition Process that wasn't the same as the one they'd promulgated to their partners during the Beta Process. Businesses didn't really enjoy not having HP LaserJet support in those opening weeks.
When Microsoft originally announced that MSDN and their developer partners weren't worthy of getting the 8.1 RTM version via download, there was some outrage at this apparent insult but, like so many phrases, insults are only effective if you let them be.
And in this case, there was a certain wisdom that dawned, saying "So, finally - Microsoft admits the RTM disk-version is too buggy that they are preventing ALL software developers from screwing up their products and are limiting it to hardware manufacturers only. HW OEMs can more easily test their drivers because they have limited numbers of models to test."
But now, this reversal - which admittedly was only a week-long delay - has folks more curious than ever. "Is this Download Version a week's newer product, or is it officially the same RTM version that HW OEMs received? Microsoft wouldn't necessarily confess, by the way. Who wants to be the first to try?"
I'm still envisioning Wiley Coyote and any one of his numerous plunges off the cliff.