The more powerful a person's cultivation level, the more they cherish their own life, because they know how difficult life is to come by and also understand its fragility. They have touched the edge of the Dao, struggled for a lifetime, for thousands, tens of thousands, even hundreds of thousands of years, all to climb higher, become more powerful, and extend their lives.
So, no one is willing to die!
The method Nadia Berger proposed was indeed feasible, but nobody wanted to be the one to draw fire because no one wanted to die.
Of course, this world is destined to be a survival of the fittest, where only those with strong fists and abilities can live longer and have the privilege to live more unrestrained lives.
Take Tyler Nash, for instance. After he received the inheritance of the Dark Demon Overlord, not only did he become a demonic heir, but even the strongest old demon in the Magic World, the Three Corpse Demon, obeyed his command.