1000 satoshi is only 0.08$ and it is worthless. Nobody will deposit on the site with the greediness to get the bonus. Yes, regular gamblers will deposit to play on the site and get additional 1000 satoshi. I wished they could have given some more bonus like 10 - 20$ which could have grabbed the attention of the players.
It may look worthless and low for you but this is something that regular gamblers should get for just trying out 2dice. They are not a charity and they are starting out their business and establishing their name
We don't know if in the future once they are already established and have enough budget already to make worthy contests based on people's standard.