I didn't know this was a rule. I thought like in most other sports canceled games had to be made up. Then again, LSU didn't make up a football game that was rained out this past season.
I think this is a silly rule if you ask me. All games are needed to determine SEC rankings heading into the SEC tournament. Of course, this could help some teams while hurt others. I know there are weekday games as well for all teams.
I guess I can see why this last game of the series against Auburn isn't being made up. Due to finals & really no day to use as a makeup but you say they wouldn't have made it up anyhow if it wasn't during that 3 day window. I think this is a rule that needs to be seriously looked into possibly changing.