It should be rare if its truly random but i doubt it is. Wouldn’t be surprised if the odds of landing the bonus go down as the multi goes up to keep you chasing.
Can you imagine if it didn’t have this feature, would you even return to a game after 20+ bonus baits in a row. Probably not.
Hope it pays over 1000x for you if and when it finally lands, get a screenshot and keep us posted.