Is the Reddit API pricing a chance to make money?

I've been having this conversation on a few sites.

Overall, it seems like indie hackers who have a Reddit app have a really good reason to make their app a monthly subscription and massively increase their revenue.

Sure, not all users would sign up for the monthly subscription. But realistically a good portion would.

Here are some numbers based off Apollo announcing the costs

$2.50 a user for API costs.
$5.00 a month subscription would cover that cost.
$1.50 going to AppleTax.
$1.00 a user to the indie hacker
If 5% of users that would cost $20MM sign up for $5 a month it would be $2,000,000 a month overall revenue.
$1,000,000 to Reddit.
$600,000 to AppleTax
$400,000 a month to the indie hacker.

Is this just a case of indie hackers not seizing the moment and costing themselves money?