Most companies issuing tax charges have massive pension obligations due to a huge retired work force. I dont think Krispy Kreme every had a huge pension obligation like Ford, 3M, AT&T etc.
The only thing interesting about the earnings release date is that it is on April 15th - the day taxes are due.
Other than that there is no magic smoke dust signals that they are giving by announcing on a Thursday in the evening in the Month of April halfway through the month, on an odd calendar day that is 20 days before cinco de mayo and a week after easter.....