I don't think most people disagree with you that there are differences in some cases, as far as how a mix is "bounced" to 2-track. And in some cases they may also be audible to some people.
But it's only helpful to people if they try it themselves and are able to ABX it, or if someone else does, proves they can ABX it, and provides information as to the exact version numbers of the software in question.
The topic was never about the difference between mixing engines or devices.
[edit]
nevermind, i'm replying to the wrong topic... the bouncing & re-mixing sub groups vs bouncing all at once topic. MY BAD.
[/edit]