My thoughts exactly. Lotteries are primarily a tax on people who can't do math. So if those who can do math make money with it, the more the merrier. In fact, they'd be doing a public service if they bankrupted the lottery in question.
There used to be a sign on I-10 as you approached the Biloxi, Mississippi area. It was for a casino and said something like "Our slots have 98% payout!". I have no doubt as to the veracity of such a statement, because 2% of the money that flows through slot machines is more than enough to turn a profit from them.