I love many Japanese names as well, as you can tell by my extensive PNL.. But I agree with you; its weird to use names from another culture/language that you have no connection to. People in minorities consider that as cultural appropriation. It also looks ignorant and kind of boastful. "Hey, I know Japanese names. Do you? Huh? Maybe you should get educated!"
I'd avoid doing that. I think it would hurt people's feelings. Plus, what if the kids didn't like their names? If I had a French name, I would think that it was pompous that my mom and dad gave me a name just because it sounded beautiful, not because it honored a relative or fit into our cultural background. I'd be really confused: "Are we French?" Them:"Oh, Idunno."