Yet, as many have said, if the guy chose to audition and finally let them down...WOW!!!
IF that happened (which is a big "if" since we have heard nothing difinitive or concrete from a credible source), it's actually not as big a deal as some make it out to be. Think about it from his perspective. If he's in a situation where it
might work out, but he has other things brewing that might ultimately conflict, what should he do? The availability to audition for DT is a very limited window of time that likely will never come again. What if he passed it up, banking on whatever else he has lined up, and then that falls through and he missed his chance with DT? Safest thing would be to audition and see where it goes. This happens in other fields as well where people interview for jobs, are offered the job, but then don't take it because something else they had in the works ultimately comes through. Yeah, sometimes people get miffed over stuff like that, but most understand that that's just the way it works sometimes, and the interviewee has to do what he/she deems the best fit for him/her. No big deal.
Come to think of it, I had a sort of similar situation when I applied to law school. I had been accepted by a few schools. I was planning on going to a particular school here in N. Cal. with a very good reputation that had accepted me and had gone above-and-beyond in terms of reaching out on a personal level to express their interest. They accepted. I indicated that I would likely accept, but was waiting for a last few details to crystalize. And then, out of the blue, another school made me an "offer I couldn't refuse," so I went there instead. It happens.
While a lot of people would see playing for DT as the opportunity of a lifetime, if there is something else that is a better fit for Minnemann (or anyone else, for that matter), I couldn't blame him at all for making the choice that best suits him.