I do agree that faucet money is not a charity because gambling site owner giving this free money to encourage people to spend more time on the site so that some of the members may attract to other features of the site and finally they can spend their money on those features.
Initially, site owners were making a good money from advertisements but when Google Adsense banned their account but now he is getting more profit from the hi-low game. If they don't make a profit from the site then they will also stop this so-called charity work.
Totally. It is well known in business that if you want to improve your sales, youd better give something for free. This site doesnt give satoshis away out of pure altruism, its just because it brings people to play the hi-low game.