As Felix looked at the various swarms of clothing rushing into the store, he had no time to think and decide. In his "final attempt" to escape, he closed his eyes desperately, letting the clothes swarm him.
Felix had decided to take a gamble. Orchard Square had never reported a murder, after all. The Black Soul Scout had set up multiple soul barriers, making it complicated. It was definitely not for killing.
Otherwise, wouldn't it be better to have done it from the start, or killed them in sec