Board Thread:Theories and Speculation/@comment-25319479-20171101152711/@comment-33953813-20171222142817

Frankly speaking I don't think it's a big issue of her using wood style. As Yamato explained one can create wood style by infusing the earth and water style. But the problem was that no one could infuse earth and water style to create wood style to the extent of hashirama since he was special (due to obvious reasons).

The fact that Moegi can use wood style means that she is extremely skilled than infusing the earth and water style at once.

This reason seems good enough to explain her wood style.

Actually I don't understand why they want to give Moegi wood style out of the blue. Maybe they want her to be on par with konohamaru since now she's also a jonin leader.