I would say it's fairly obvious: the chances of landing a job if you haven't completed a "tagged" scheme are slim at best.
It's my understanding that CTC and OAA have self sponsored courses starting every month of the year and FTE several months of the year.
Your comment would suggest that most of the candidates passing through these schemes are unemployed, or perhaps employed as something other than a pilot.
Do you really believe this to be the case?