Not at all. The Japanese never refer to it as cultural appropriation because they deem it more as cultural ‘appreciation’. Besides, they like it a lot when other nationalities take an interest in their culture, customs, and clothing (which is much like South Korea's attitude towards foreigners renting their traditional clothing called hanbok). This is the reason why makeover studios and kimono rental places are so popular in Japan! My experience also serves as proof because as I've mentioned above, a lot of Japanese people walked up to me to appreciate the fact that I was wearing a kimono. Some of them even gave me a thumbs up!