Since we both worked there: I can think of a few places at Segment where we'd have added more reporting/analytics/search if it weren't such a pain to set up a OLAP copy of our control plane databases. Remember how much engineering effort we spent on teams that did nothing but control plane database stuff?
Data plane is a different story, but not everything is 1m+ RPS.
Data plane is a different story, but not everything is 1m+ RPS.