Why so many parks for sale in Flint, Michigan

Just look at the data on best places and its screaming to avoid Flint, 30% pop decline. Smarter people than me have also told me to steer clear of Detroit and Flint for the time being. You can fix a house you can fix a park, but you cant fix a city by yourself, especially ones in the middle of an exodus. The deals do look good though and I long for the day those Metros come back to life and thrive.