[To his credit, Yasusada looks like he's giving the question serious thought. He doesn't particularly want to hurt Itsuki, but he isn't much one for softening truths, either.

But for all that the sword bond transcends time, Yasusada has still only known Buzen for a few weeks. All he can do is offer his best guess.]

I'm not sure. I think... even if it did, I don't think he'd say it. He'd say, "That's because we Gous are like ghosts!", and laugh.