The 1% max bet doesn't really stop everything because you could just split the bet into 2, and now you have a 2% max bet. Someone could cleat the full 26k site bankroll with about 3Mil by just always betting at 98% until the site is bankrupt.
Note that it is not the max bet that is 1% of the BR, it is the max profit that is limited. When you bet at 98% chance of winning and go for max profit, say 250btc, means that you have a 2% risk of losing 24500btc each bet! You will be ruined sooner than the bank, I guarantee you that...