Are you kidding? This site is not even able to pay a user who won less then half BTC and offer to pay it in monthly basis for around 10 months.
Cryptodice should pay this user first in a full amount then they can do something else for promotion purpose.
Jackpot is still available, it is more than 0.2btc at the moment.
If this jackpot amount is real, cryptodice may use it to pay the winning user. At least cryptodice need additional amount less than 0.3btc to pay the user.
It is better to solve the problem first and sacrifice the jackpot and some amount from their initial bankroll so they can continue the project.