I can give you some thoughts:
Evolutions as a set has more charizards graded (12,564) than 1st edition, shadowless, and base unlimited combined (11,049) …and it’s still fresh from distributors as of months ago. Yes, there are a few more designs in Evolutions, but my point stands.
There are boxes all over the market looking to be flipped for profit. People don’t seem to realise just how much there is out there.
Since most of the purchasers purchased with the same idea in mind there is likely to be some resistance.
Then you have to consider that there is likely to be a lot more cards sitting with PSA waiting to be graded right now.
Submissions over the past 6 months have been ramping up and the backlog means they more or less haven’t even been touched yet.
If demand can be sustained then that’s great. Looks risky to me though.
Australia often has supply squeezes and higher prices so that’s not saying much.