Then you shouldn't have brought it up. You can't post your point-by-point analysis of what you considered evidence that DNC was coming, then try to shut people down when they address those points, and expect the latter to be taken seriously.
If it was just "the POSSIBILITY", then were you really "slapped in the face" when it wasn't one of the 4.0 classes? That's REALLY strong wording that implies you feel betrayed, that something was promised to you and then they went back on it. It's either that, or "it's just a possibility I'm excited for, but of course, it may not happen." Really can't be both.