Was listening to Gary Parrish and Matt Norlander speculate that the committee is probably going to align themselves with the NET rankings, more than we might be accustomed to. Particularly when it comes to including mid-major at larges who rank high in it. Currently Buffalo (#24), Wofford (#28) and Lipscomb (#30) are all top 30 NET teams.
In the past, the RPI was a guideline, that they used, but they could deviate from it too, namely when they felt it overvalued mid-majors. Here, it's still a guideline, but it's their guideline, that they created, for this specific purpose. So for them to exclude teams like that is basically telling people that the algorithm that they created themselves, specifically for tourney selection, is wrong. They likely aren't going to want to even hint at going down that road in Year 1, so they expect the selections to closely adhere to it.