This is true. imagine if Centerville went back to Centerville and Washington Township as separate (and others). But aren't some of these the result of more recent consolidation (i.e. Kettering)? Not recent like five years ago but within the last 30 or so years?
On the note of the Miami Valley, there are several schools that exist due to consolidation of small township schools years ago such as Miami East and West Carrollton (Moraine, WC, parts of Miami Township).
There are others that SHOULD consolidate. It's a double edged sword though. These small schools want to have their own school and have all that community pride. But when the ask comes for much needed facilities or increased revenue, all of a sudden the rhetoric switches to why things cost so much, we should consolidate, etc. Nothing happens, and eventually levies pass, but the irony of it all is not lost on folks. Cases in point: Jefferson Township, the western half of Miami County, etc.
From an athletics standpoint, maybe the solution is that some schools stay separate but could have a joint team in certain sports. For example, in Newton schools in Miami County, they do not have football. If there were kids wanting to play - could they go play for Milton or Covington? This would affect other sports numbers though, but it would be interesting to see.