bonus terms say “minimum risk bets excluded” but support wont explain what that means

so i’ve been reading through the promo terms and saw “minimum risk bets excluded from wagering” buried at the bottom. tried to get an answer from their support but all i got was “we can’t give specific bet types.” i guess they don’t want anyone to actually know what the rule means. the only example they gave was “don’t bet both black and red at roulette” which is kind of obvious, but does that mean covering a dozen and the opposite corners is out too, or only if the expected loss gets too low?

i’m also wondering how they treat stuff like playing both banker and player on baccarat, or doing heavy hedges on craps or sports with same game multis that cover every outcome. is there a strict threshold for what they see as “minimum risk”? i always assume the house will use the rule as a catch-all if they decide they don’t like your play, but figured maybe some of you have more experience with what actually gets flagged. anyone ever had winnings pulled for this?