Look at max bet (10.5BTC) on max odds (35:1) vs available bankroll (608BTC) there is your answer.

No it's not risk free. Manage your bankroll accordingly.


EDIT: Good news they lowered the risk of ruin. The site now only risk a maximum of 50% instead of 100%+ yesterday. I've never seen more than 1.5BTC bet on 17:1 and 2BTC on 1:1 so in reality they never risked more than 100%.