That Tasmania is a state is largely irrelevant to if they get a club. The market there is just too small, and is declining (both relatively, and in some important ways, in absolute terms). The point of comparing to other regional areas is that the exact same arguments apply, but *neither* is a good option for hosting a team.
As for GC & GWS. I disagreed with those teams having been created, but the argument for why they're there is completely different to the arguments for a Tas team (long term growth Vs sentiment). That the Commision chose to double down on growth and ignored the sentimental argument for a Tas team (back when the case for such a team was stronger) tells you all you need to know about their thought process.
It can be argued that VFL should never have addressed its problems & continued to delude itself the best players were playing.
Unfortunately the game needed to expand to get enough money to survive - that was the totality of the thought process.
The VFL had long stripped the game in Tas & grew to believe it was their right. Nothing has changed 30 years on.
I do agree the mindless creation of extra clubs was a mistake & 'more teams' is still on the agenda. With season 2021 looking like the hybrid we have in 2020, & with the AFL clubs unlikely to receive extra funding in 2021, there will be some deep thinking.
By 2025, Tas will have a team in the comp because it will be viable.