Morale is already low within the Ejet FO ranks due to the fact the V CFO have come over onto the 737 paid nothing for either the 777 or the 737 (only bonds) and the Ejet FOs have paid for their Ejet endorsement and the company wanted them to pay another $40-50K if they wanted to move to the 737 as an FO. So the company had to do something to fix this plus they needed to find FOs for the A330 so with the AFAP (not to sure about VIPA) an agreement was reached. There have been many emails to the pilot group over the last 3-4 months regarding this so they have been kept in the loop.
This variation in the EBA will allow movement within the 737 and Ejet FO ranks as 737 or Ejet FOs move to the A330, then it opens up FO positions on the 737, which will be filled internally buy Ejet FOs and the Ejet slots will be filled externally.