Proletarian - we begged for the same type of licencing arrangements for pilots for many years to no avail.
The VSOs convinced themselves that licences would lead people to leave early for more lucrative positions in civvystreet.
Instead, people left early because they needed to get their licences and didn't want to be left behind. The evidence is writ large in the PVR rates.
You will have the same battle with ATC licences unfortunately.
The younger generation understand the importance of terms and conditions and until those VSOs can make the military competitive and attractive, recruiting and retention will continue to be an issue. Just look at what they have done to pensions....