No, Ikuhara was the one who made Rei into “90’s anime Rei” to begin with, he literally considered her his ideal waifu.
And you’ve got that backwards, it was Naoko who shipped Chibi-Usa/Hotaru, Ikuhara didn’t ship them at all, as evidenced by getting rid of all their romantic subtext and turning them into just close friends in the 90’s anime. ChibiTaru isn’t a thing at all in the 90’s anime whereas it is in the Manga/Crystal.
And you’ve got that backwards, it was Naoko who shipped Chibi-Usa/Hotaru, Ikuhara didn’t ship them at all, as evidenced by getting rid of all their romantic subtext and turning them into just close friends in the 90’s anime. ChibiTaru isn’t a thing at all in the 90’s anime whereas it is in the Manga/Crystal.
Anime Rei is his creation with Sato, I think Chiho is the one who is fond of the manga of SM in the first place.
Saito has similar ideas with Takeuchi...which I think is why he picked her in the first place.