Eminent domain mess, Land taken by mistake?

Fox News has a nice video story about land that was siezed under eminent domain to build a WalMart, but now the city want to buy the land back because the WalMart store design is said to be "too boxy." Don't people check these things out before they take other people's property? I assume that people would be more careful taking property if they actually had to pay what it was worth.