I'm somewhat confused by the downvote. The article seemed to provide compelling evidence that lotteryesque savings accounts encourage savings, especially among populations who save the least. I'll again ask: Why would such a policy need be coupled with the removal of state lotteries? One could implement it and get benefit regardless of the traditional lottery.

I think you're right, there is no reason the two must necessarily be connected. Although I think the legalization of gamified savings accounts might provide an opportunity to ban state-run lotteries.