as a viewer, i like rng, i like abandon vehicle. They are so low percentage now, leaving it on will add flavor.
Live sports have rng, bad referee decisions, lots of variety.
Its not a flavor its a gimmic which might give you win\lose based on the dice roll, without any controll.
Competitive games do have RNGs in it, depending on the title. But you know what the difference between good and bad RNG model? Predictability.
Poker is totaly RNG game it its basics, but its still competitive, because you can predict what your opponent might have\what cards might be on the table and so on.
Any digital card games, if they are done right follow the same model, where you can predict what cards you might get based on cards already in your hand.
CoH2 excample. Out-of-control shooting. There are 3 possible outcomes, lets say they all have same chances of happening. You know that out-of-contol is common. Based on it, you can continue moving when you see out-of-contol or continue circle around enemy tank.
Abandon very rare mechanic, becased on nothing, cant be predicted, cant be countered, cant be prevented. In non-ideal situation, yes, it has no impact. In ideal behind front line situations it can cost you game.