Only about 40% of those who start training starting OJT is an accurate figure for most if not all of the courses since 2008, but whether to blame this on FEAST... well, you be the judge when you have some more insight into the training.
There are many more variables in how the training is conducted, for example, are students offered extra training if they are falling behind? Are there opportunities to be re-coursed to a later course? Can students who are not top-performers be sent to a less busy unit/sector? What happens if an exam (theoretical or practical) is failed - is a resit allowed at all?