How do the island's citizens react to the disappearances of their right arms in Chapter 26 and why?

The narrator states that by the time "their right arms had disappeared, people were less troubled than they had been with the disappearance of their left legs" (255). In part, this is because they have found disappearances involving body parts to be "easier and more peaceful than earlier ones," since no one must "gather in the square to burn the objects or send them floating down the river" (255). Ironically, she notes that when people's right arms are disappeared, there is "no uproar, no confusion" (255).