I am sure Naoko feels betrayed at what TOEI did, I think what Happened to Sailor Stars seems to be a consequence of what TOEI did to Ikuhara by not approving the Super S movie he wanted to make and not having him in Sailor Stars, and Naoko supporting TOEI's decision.
All that is known is that Naoko had disagreements with TOEI over royalties and purchased the broadcasting rights of the 90’s anime.