User blog comment:Kaido King of the Beasts/Chapter 896: After Beating the Mochi, Pop into the Oven/@comment-24850639-20180302165349/@comment-71.13.82.131-20180305182054

Yup, because it makes sense that Katakuri decided to hit Luffy and then pick up his arm so that Luffy could complete his punch. Also, as was shown the first time Luffy was hit with it, Luffy would get stuck to the spiked arm, but now he used magic so he didn't get stuck.