I'm referring to any spectator observation of rules-breaking. It's perfect okay for a fan to observe, "Both feet weren't on the ground," and for players, coaches, and referees to hear it and take action -- or not -- based on it. I'm making no statement about whether it's good, or bad, or valid, or anything ... I'm simply observing that it happens.
In other words, there's no spectator-gag rule in sports, so it's pretty perplexing that your side of the argument keeps bringing it up, as if they aren't aware of that. It's ... well, it's a little derpy.