Coming at it from a different angle: in addition to my episode zero reference above, this was a Jason Sudeikis "vanity"/fan service episode. My wife is from that area, and every two minutes she was pointing like Leo DiCaprio at another KCMO landmark or mannerism or whatever. Ted's mom is like Midwestern moms. Keeley and Rebecca walked by a fountain in a city of fountains; while Dazzle Me Moi and Tammy aren't themselves "real," the names are the only fake thing about those shops and those people. That was really Gates BBQ, and they really do operate like that: my wife yelled "Hi, may I help you!" two seconds before they did on the show.
Daniel Manning Elementary School isn't real. But my wife the KU graduate knew that Sudeikis the Jayhawks fan was tipping his cap to one of the Rock Chalk legends.
All this to say that, while the Negro League Museum thread may have been a touch heavy handed in its presentation, I think it was mostly yet another KC reference.
Sudeikis, Bill Lawrence, and the rest of the Lasso crew have earned a little bit of leeway when it comes to the messages they send, and for making an episode that didn't actually "do" much of anything for the overall story. But I certainly hope they get back to what made the show great to begin with, and soon.