Having been licensed in VIC, NSW, QLD and NZ, I too have never ever seen this or experienced it, I've asked a few trainers here re this and they too agree, it's a fucking disgrace to put it mildly.
Back in the day [60'/ 70's] the starter/vet used to have farrier gear around at the start, no horses were re-shod/plated behind the gates, if a horse lost a plate going around to the gates the other was just pulled off, progress is a beautiful thing, in this case it's plain fucking ugly, np progress here, just stupid and arrogance from a panel of incompetents.