While it has been difficult for VFL away club members to get into these matches, on reading page 21 of the round 6 Record it appears to be officially "we don't want VFL supporters to attend at Kardinia Park".
They obviously anticipate getting a packed stadium for the Cats v Giants "blockbuster". Any VFL supporters would be gone long before the AFL match got underway.
The areas supposedly allocated for VFL supporters were always full of AFL suporters, both of the visiting team and Geelong. There was no priority for VFL ahead of AFL. Geelong members' reserved areas remained empty until well after the VFL match had finished. So, always plenty of room for VFL supporters if access was properly managed--which it has not been.
Incidentally, blockbuster, applied to most AFL games nowadays, is defined in one of my dictionaries as: A bomb capable of destroying a city block; Anything of devestating effect. How is this relevant to an inconsequential football match?