I have no problem with a regional rally being whenever and wherever they want to hold it. I know that it is not desireable to conflict with other rally dates...but it isn't the be all end all either. There are some prime times of the year to ride certain portions of the US...and I don't believe that organizers need to be handcuffed by the fact that other rallies already had "dibbs" on said date.
If I was going to ride Colorado, I would ride it in mid to late June.
That being said, I won't be able to attend SW-FOG, but salute those doing the work.
Seeing as you appear to be unable to attend either of the conflicting rallies, it makes perfect sense that it doesn't bother you!
For the record, I commend Scott for taking on the role of SW-FOG RallyMaster and will support the decisions he has made, but that does not mean I cannot be disappointed! The way I read it, no one has called exclusive "dibbs" or stated rally dates "MUST not" conflict, but rather, as you stated, it "is not desirable"... particularly for those of us that planned, or wanted, to attend both.