No. Why?
We've been told from 2 sources Swords can go in battle and it's also a testament to the swordsman, so there's no reason for Enma to stay stagnant while Oden himself is improving.
We've been told from 2 sources Swords can go in battle and it's also a testament to the swordsman, so there's no reason for Enma to stay stagnant while Oden himself is improving.
The sword was made that way, and Oden mastered it at a young age. That's a perfectly plausible explanation.