Sorry to read your PFO.
I see on the Jet2 website that they have just put out an advert for pilot apprentices. They have specified that candidates must have completed a 16 hour JOC. At least that clears up any ambiguity.
I heard the JOC requirement caused lots of problems last time but in the end they were happy to have people who had completed a JOC with less hours. I wonder why they have changed their mind.