Depends on the interest and the level of knowledge of both. Especially those who are involved in crypto for a long, they are surely well aware of how Trading Futures works therefore, they might have an interest in being a usual gambler while at the same time, slowly keeping up with the phase on Futures.
As for usual gamblers, especially those who didn't lurk on crypto most of the time, they might not be aware of Futures trading in general therefore, they will just keep on their usual gambling habit and activity. Maybe some are not even interested in crypto in general so I don't know how can they even consider doing Futures Trading even if they will know the potential of earning here.
As for some crypto-gamblers, they know Futures so sure but maybe most of them are not interested in too much technicality.
Risk will depend on how far the person is knowledgeable at those. What matter here is, risks can be managed in general. In usual gambling, luck is the main factor to win on either luck-based games or strategy-based games, while on Futures, although still need luck to favor the situation, the proper timing plays a critical role.