In fact to be correct... it was written:
Before an interview date is offered, all minimum requirements must be met. Interviews will no longer be offered with items missing from the requirements (eg MCC certificate, JOC certificate, etc.). If not annotated on the licence, a certificate will be required as proof of having completed ATPL theory subjects.
It does not mean that they won't screen your file! If your JOC is pending and that you will get it in few weeks I guess it does not change a lot!
For sure Wizz HR are busy dealing with the applications but if you ticked 'yes' for all the requirements you will pass the first check! Then of course they might only take into consideration the ones which are 100 % ready!
Wizz is going to hire around 140 pilots for the next 12 months... 2014 is going to be (finally) a better year in aviation!