I've started doing all the analysis on my blog, but one early observation is that despite Southern doing very well at Nationals, their bump up rate was nothing extraordinary. In fact, the men as a whole had a historic bump down rate certainly not seen for Southern or perhaps any other section in the time I've been analyzing ratings. Here is the men's chart.
The other sections are all pretty normal, bump up rates around 8-10% and bump down rates around 4-6%.
But Southern had nearly 15% of men bumped down? And only 4% bumped up?
In 2019 we had the Great Southern Bump, and then the subsequent curious notification to some players that they should appeal down and a large number of those were granted, so it feels like this is a continued correction for what was perhaps an inappropriate bump up in 2019. But this still feels awfully extreme.