$60k for 1 BTC is great news for many, however they are committed to pay 1 satoshi minimum per roll, with 50% referral commission that's a recipe for disaster, they would become unsustainable like this.
Not to mention the 0 customer support users are complaining about.
There is no harm in paying less from your faucet but keep on paying free bitcoin, over the long run this is the best thing to do.
Lastly, as mentioned, 0 customer support, there is no way to pass this message onward other than posting here, so hopefully in the near future this information could help them with their strategy and business decisions.
Freebitco.in isn't just a faucet. It's also gambling platform. They make income from multiplier and sports/events betting. That is how the site has been kept sustainable and profitable along the years. It's not possible to compare this site to other random faucets which don't offer any additional features to users, neither benefits such as investment. The main issue here is support, which is barely non-existent. All the other features are working fine.
Moreover, faucet's rewards aren't static. They keep fluctuating as BTC gets more expensive or cheaper. That is how the platform controls the sustainability of the feature, besides always checking for fraudulent claims from bots and cheaters.