Another pointless piece of admin, just like the SNCO matrix.
I think that if and only if there was an appreciable financial and conditions benefit to promotion in the ATC for volunteers then a box ticking exercise like this has any value.
I know an adult Sgt overdue by 2 years for promotion who is irritating his OC as he won't complete the matrix, he is lauded for all that he does and says if that's not good enough they can poke it. For the other crap he will be expected to do he says for a few extra quid for a day and bigger rank slide ain't worth the hassle.
Within the Officer ranks, there are too many who revel in their rank and love to play "do you know who I am", very many answers to that, so I imagine there will be many looking to tick boxes to get a bigger/additional shiny ring.
One assumes that this exists in the regulars and the lack of imagination emanating from the ivory towers has resulted in an almost direct transfer of the idea.
It must be with some irony (if they understand the term) this is published at a time when the ACMB are trying to "Value our Volunteers" and have a survey looking into the admin burden in the Corps. You could not make it up. I keep expecting the ATC to turn into a Ronnie Barker classic skit, with the official behind a desk trying to explain why things happen.