I find it hard to believe that there were no rules regulating this since Mesoamerica loved moderation, but I also understand the game has heavy religious and symbolic meaning that blatantly spells out the only winning move is not to play.

The game is a giant allegory for how one's life can become unbalanced and how unbalance can be destructive with the most dangerous parts of the board being the "spokes" that represent unbalance in one's life causing you to lose the game. Couple this with the fact gambling is considered an unbalanced activity, its an ironic game that extols virtue of denying dangerous vices while also BEING a dangerous vice.

Since this was an era where most human cultures tied "luck" to the favor of the gods than probability, would this also factor in why they seemingly did not regulate the game?

Knowing this, would my hunch of "they allowed it because if you lost this game you deserved to lose not only because the gods willed it, but you ignored the game's warning" be correct?