You are correct, just adding a few things:
Nashville will still be a 360 stage, aka the pit is all around the band but yes they closed off some of the seating. It will not be endstage. It's the same stage setup all tour, they just don't have those grey areas available anymore to buy.
The midwest sold very poorly for the band but the northeast was the most successful run they have ever had there - 7 absolutely slammed shows, like 90-100% capacity at all 7. They've never played multiple nights in cities and done that well in the northeast. In the future they may want to cut down on the middle of the country shows and do a full northeast run (with Philadelphia, and do 2 Montreal shows, etc) since they can't get enough of LP up there.
Look at some of the other midwest maps - it's pretty bad. But they now know what they can and can't do in the U.S. - at the end of the day it's nice to see them make up shows from 2015 and 2017, but they will definitely cut it down some moving forward. Just hammer the full northeast and then the select other markets.