No, but I don't know how much Walmart lost in one day of rioting either. Point is, if Walmart want to avoid EBT riots, don't take EBT. Otherwise, suffer the (now) known consequences.
The amount they lost at those two stores is dwarfed by the profit they make in a week just in those two stores, much less their thousands of other locations. Have you been in a Wal-Mart lately?