I haven't been on the base as long as you but I don't agree the base made that up...
The sword of Nunoboko is fashioned from TSB correct??
But then it no longer is just TSB but a manifestation of the user's will right?? according to the manga
Is it then wrong to say the sword is your will in physical form??
Now if the sword is indeed your will taking form, then all its properties are now dependent on your will..
If your will is strong, the sword becomes strong as well
If your will is weak, the sword weakens as well...
After Naruto TNJ Obito, his will was no more as resolute as it was before, so his sword weakened..
And saying Naruto's will is the same as Obito's will.. I doubt you believe that yourself
Naruto has a never-giving up spirit and that's how he's different from Obito and that's how his will is stronger than Obito...
Naruto may never manifest the sword but let's be honest, if he did manifest it there's no breaking it..
And since it's made from TSB, it can do all TSB can do having all five basic nature releases andYin-Yang