BGAs random number generator is unrealistic.

[Jellby]

RNG only mimics randomness while actually being a predetermined function that tries to give random results. Dice rolls and good shuffle are closer to random then shuffle and dice rolls.

Dice rolls and card shuffles only mimic randomness too, they're deterministic processes (as far as our current understanding or physics goes). In practice, both are as random as it matters (except if one shuffles poorly, or uses loaded/broken dice, or tries to cheat).