Some people see this as a casino that has a faucet, I doubt that is true, before all of this there was the faucet and they made their money from advertisement so the faucet was the real deal and then the gambling part was added, so if you ask me it is a faucet with casino in it not a casino with faucet in it.
Does it really matter if freebitco.in is a casino with faucet or vice versa? Just call it a gambling platform if the name bothers you 
Faucets are part of a lot of gambling sites out there, just because freebitco.in was initially just a way to earn some free btc long time ago this shouldnt stop them from evolving.