Actually I don't think so because some players do win in the "Multiply your bitcoins" and in the Lottery sections. You can check the STATS section to see how many Bitcoins were won by users and you'll see that the amount is impressive.
that stats page doesn't show complete statistics, only positive numbers for marketing gimmick
it does tell you how much won by users but doesn't say anything about lost amount
it does show withdrawal amounts on blockchain but never mentioned total deposited by users
so only partial statistics available to us which used by the site to attract more users