Well what about the parallels between her and Shiryu?
https://x.com/3SkullJoe/status/1950071931190808631
Source: 3SkullJoe
".Shiryu's epithet is "Shiryu of the Rain."
.Tashigi's sword is "Shigure." / "Autumn Rain."
.It was raining when Zoro first fought Tashigi
.When it started raining in Alabasta, Tashigi was the first to comment
.Tashigi used a rain themed move to finish off Monet
.Tashigi can't see in her introduction
.Shiryu is invisible
.Tashigi's dream is to take the Meito blades from evil swordsman
.Shiryu is the stereotype of an evil swordsman"
You can have a cold hard "realistic" analysis of the story but I think they are bound to fail, only a dreaming analysis open to lots of posdibilities can suceed in predictions