Just because something is not provably fair wouldn't necessarily preclude me from playing the game for fun.
But I would certainly never put in more than say $50 in total every time I play this game. They could very easily discriminate against higher bets, whereas if the game was rigged, they are less likely to target smaller bets.
By the way, it would be interesting to know how much is at stake for the "average" rotation of the wheel. It would be useful to know both for those reasons that you said (to understand the size of a safe bet) and out of simple curiosity - it is interesting from what turnover the organization of such a game makes economic sense for the casino.