A problem I experienced with witness employees, is that they wait until the last minute to request the time off. It would really irritate when an employee would give less than a week notice that they needed time off when any witness knows that the dates are announced months in advance.
It's possible that this is what happened here?? Perhaps they waited until the last minute only to find out that time had already been granted to other employees who put in for vacation time. If that's the case, then it was 'lack of planning' on the part of the JW and they should not have been awarded the big payout.
If they gave ample notice and were still denied, then i agree: Employer is in the wrong.
-Aude.