Ling Han did not intend to let Luo Lie off.
He was an emperor, after all, the supreme leader of a small world. After entering the Immortal Realm, he had been oppressed on the left and suppressed on the right. Even though he'd been psychologically prepared, it didn't mean that he had no temper.
Now that Luo Lie had provoked him, he would just use him as a punching bag to vent his frustration.
Give him a beating, no big deal!
In any case, he was also a guest of the Left Minister and the sovereign of a small country. No matter how small the country was, it would still rank higher than the Luo Clan in terms of protocol. Therefore, even if he were to cripple or kill Luo Lie, the Luo Clan could only bitterly swallow this loss.