Forgive me if I'm wrong on this, but didn't Sesshoumaru seal InuYasha and Kagome away for protection? I know it was written in a very convoluted and stupid way but wasn't that the justification? In any case, it is awful that Moroha was kept away from her parents but the three of them seem to be cooping with that possibly very traumatic situation very well, so I guess we don't need to be too sad about that. The emotional logic is very weak in this show.
I don't think that Rumiko had much to do with anything besides the designs of the girls. When you sign away the rights to your characters and story, the executives can do whatever they damn well please with it. I mean, look at all the Marvel properties and some of the awful crap that's come out of Phrase 4.
Sesshomaru didn’t seal them to protect them, no. It was even more convoluted than that! He sealed them to protect Rin. You see this woman called Zero connected her life to Rin so if she died, Rin would die too. Sesshomaru and Jaken, like the idiots that they are in this story, thought “Inuyasha and Kagome are a problem, they could kill Zero so we have to seal them away” when the intelligent thing to do would have been:
1- HAVE A CONVERSATION WITH THEM. Literally just tell them “hey don’t kill this women because if you do Rin will die” and that’s it, problem solved. Sesshomaru knows damn well that Inuyasha and Kagome are softies with chronic hero syndrome and they would never do anything do endanger an innocent person like Rin. Not to mention that INUYASHA AND KAGOME DON’T EVEN KNOW ABOUT ZERO’S EXISTENCE? They know about Kirinmaru and his supposed goal to kill all hanyo but they’ve never heard of Zero??
2- Best way to prevent anyone from killing Zero by mistake: seal HER in the border to afterlife instead of Kagome and Inuyasha 🙃
This is not even addressing all the plot holes and OOC decisions like how only Kagome and Hosenki II saw Inuyasha put the new black pearl in his eye, yet Sesshomaru somehow knew it was there. Or how Kagome gave Moroha to Hachi (why not Shippo??) and stayed to fight Kirinmaru and Sesshomaru WITHOUT EVEN HAVING HER BOW AND ARROWS WITH HER. Inuyasha knows how difficult it is for a hanyo to grow up alone, canon!Inuyasha definitely would have wanted Kagome to stay behind with Moroha to make sure at least one of them is with her. Also sending their 3/4 human baby daughter to Koga and his wolves??? The same wolves who EAT HUMANS???
Yashahime truly has some of the worst writing I’ve ever seen in my entire life and I question the sanity of anyone who thinks it’s a worthy sequel to Inuyasha, lmao. Also like you said, all the characters were completely devoid of life and emotions. Inuyasha and Kagome defying time and space to be together, only to be robbed of their chance to raise their first baby? Don’t worry they’re not mad about it because Jaken set up a baby monitor so they got glimpses of Moroha’s childhood from him! 🤪 Also “I’m sure Sesshomaru had his reasons for doing that to us! Let’s not confront him about it!” (seriously Inuyasha and Kagome didn’t have a single interaction with Sesshomaru after all this happened!!!)
I would be lying if I said I didn’t lose some respect for Rumiko Takahashi as a writer/creator after this. She obviously didn’t review everything that was in the scripts, but she still had an overview of the whole story and she definitely had the power to make them change some of the plot points but she apparently didn’t. It think it’s obvious at this point that she’s tired of the Inuyasha series.
I feel the exact same way. I never cared about Sesshomaru and thankfully Yashahime isn’t canon, but this whole debacle still made me dislike him. I can’t imagine what it was like for people who actually love him as a character. The only saving grace of this show is really the fact that Sunrise made Inuyasha a good father, it would have been so devastating if they had made him a distant, “doing the absolute bare minimum” father like they did with Sesshomaru 😬