Is there something divine about Mizu's sword metal?

It only just dawned on me now that there may be something mystical about the meteorite that fell and was collected by Master Eiji and Mizu.

Rewatching for the gazillionth time it only just dawned on me, am I really just supposed to accept that Master Eiji, with all his years of experience really couldn't bend that meteor to his will? But suddenly Mizu, after a thousand+ kitchen knives, could outsmith him? Master Eiji really wrestled with it, to no avail. It was meant for Mizu.

Am I the last one to wake up and just get to the party on this?