That's True,by considering he recent high rollers winning hundreds of bitcoins while playing against the house is kind strage and particularly when it happens at a publicly funded/invested site or any other gambling platform.
There's nothing strange with it, as it has been explained by ranlo that there is no evidence of foul play and the bet was a legit bet. As has been stated in the FAQ as well that investing is an extremely risky action so potential investor needs to make sure that he can afford to invest since there are huge risks involved