There are some good points on both sides of this argument. I'd start by saying that there are definitely some strong coaches that have and are in the SDP system, including current state team head coaches (e.g. the Vic Country U18 men's head coach was running SDP sessions at MSAC for a while). Also, these coaches obviously have aspirations on bigger gigs, but they are also giving up a lot of their time for free to develop kids. Generally, I'd say the coaching standard is high, the problem as highlighted above is the rigid plan the SDP coaches have to stick to. I think it would be better if they switched the sessions to half following the plan, and half tailored to the athletes that are attending the sessions, based on the coach's own experience on how to best develop the athletes they are working with.
I feel like the brutal reality of the SDP is that is basically a numbers game. Most (if not all?) state team athletes were in SDP at one point in their careers, so there is undoubtedly some value in the program, but I'd agree that the majority of SDP athletes at any point in time have no chance of making a state team. So where do you draw a line at casting a reasonably wide net, hoping to see a player keep developing through their SDP years (e.g. Johnny Furphy), versus being more targeted on kids that are stronger now. Maybe BV boil it down to numbers - for every 30 kids in SDP, maybe 1 will make a state team in future, so we'll set the size of our SDP/SPP/NPP programs accordingly.
I'm not sure how SDP/SPP/NPP is going to work, but I've definitely seen a lot of movement during the year of kids moving up from SDP to NPP and vice-versa. Ultimately the kid has to take primary ownership of their own development, and if they feel hard done by to be in SDP, show the coaches in those sessions that they should be promoted.