I don't like reward checking, but perhaps some do. Direct deposit and 20 debit purchases are required to earn the 6.25% rate. The rate for any amount over 10k or failure to reach the requirements for the month is 0.02%. It looks like they plan on people not jumping through all of the hoops every month. More information can be found here:
https://www.firstsouth.com/checking-accounts/high-yield-checking