Yes the TA is a habit and once broken the habit of attending will be lost.
Today's junior NCOs and Officers are tomorrow's middle and senior managers. If they leave over the next 6-12 months then how will the gapped posts be covered and skills fade in those that remain be addressed?
Perhaps Regional Cadre Centres will emerge where only those that are able to deploy on Ops at some time will be trained?
How could this ever support a meaningfull rank structure and allow supervisory experience to be gained?
Has the time passed where the TA is held as a back pocket insurance policy for a time of massed mobilisation? Will a future TA be manned only by those that have been on (at least one?) operational tour and those about to deploy in the next 12-24 months?
Send polite answers on a postcard to your CO, Trg Major, PSI, PSAO, MOD clerk etc because I wonder what they will all be doing with their time!