I've updated my spreadsheet with data of everything with at least 50 MAU (60 instances); pretty much have my updated defederation graph done in terms of instance placement (shared it on Matrix for feedback), just need to add more statistics to it.
Adding more instances of course increases the complexity, so while I made adjustments to hopefully make the boxes easier to differentiate, any graph at scale will be somewhat confusing without animation that allows the end user to focus on one instance at a time.
Your visualization definitely adds a degree of clarity to things, so maybe I'll spend more time working on my design too.