First - I thought I deleted that comment? After 2nd thought, I get some of the ideas you've mentioned.
Buuuut, on first thought - This is the "groupings" as of right now, isn't it? Like - vs Missouri. If it's not, what's the point?
A lot of those different starting line ups were due to injury and/or adjustments. If that's the case, then a "grouping" list would be different in that given week. But this is a grouping for right now, isn't it?
We all know what it is... Trophy society, don't hurt feelings, etc. And hey, I get it... No one wants to ruffle feathers if you don't have to.... But it's also OK to point out that it defeats the purpose of "groupings" if you're not willing to actually commit to a prioritized list.