I think this is a "recipe" for "suicide" in poker. And i also think that if you take a nit and teach him all the intricacies and subtleties of bluffing, you will get one of the best players in the world )))
I think you are right about it, you have it or not, it is something of the personality of the player linked to the personality of the person worth the redundancy
it's a thing and 90% of people don't have it. Which is why the population tends to underbluff most spots at almost every level, because having the killer instinct consists in firing off the GTO bluffs without being scared of busting