If you are talking major casino that wants to sit there for decades, then yeah. 
But in this case they can just for fun squeeze couple megasats out of this and shut it down.

Contrary to the popular belief, the house actually never wants to do this. It is in house's best interest to have as much random spread as possible, because non random leads to exploits.

BitcoinMaximan

That's a good point, didn't think of that. Seems like there's always a way to get fucked over by the house :D

pycan

So you could easily be generating number 16 slightly more often and insider would use this to their advantage, right? The hashing doesn't prevent that?