That was my reaction to you talking about Brisbane's "dire" 5 year period.So what?
Poor Brisbane had a short poor period (where fans dropped away) bookended by sustained dominance - 8 top4 finishes, 6 GFs and 4 flags.
Meanwhile, the AFL lets those "VICBiased" advantaged Melbourne based clubs spend 20+ years without even making a PF or winning a final...let alone talking GFs and flags.