I think it would be great for BTC since we could use Sats or the small amount of crypto to play it.
I hope that there would be a site that would create something like that and have a small minimum amount to deposit.
That's not impossible to have other site who offered any cheaper gambling bets deposit, because competition is very tight nowadays. In my experience, some of them introduced sign up bonuses upon having minimum amount of deposit. This is really profitable and could potentially gain more customers as well.
And I think having a small minimum amount of deposit would be a good thing for them since there are gamblers who couldn't deposit the minimum amount to play and have fun at least if it is fish arcade they could enjoy every sats that they would deposit.