It’s also worth mentioning that Kyros and Wyper were main characters in their arcs, while Inuarashi is just a minor character in Wano. He did basically nothing in Acts 1 and 2, and almost all the spotlight he got in Act 3 was shared with the rest of the Scabbards. Kyros and Wyper having the glory of beating one of the main bad guys was far more understandable. Also, Kinemon is a more important character than Inu, yet his “fight” with Kanjuro was no more than 1 page, despite Kanjuro being a more despised villain to all than Scabbards than even Jack is to Inu and Neko
Asura, Denjiro, Kawamatsu and Kiku all had more focus than Inu this arc and 2 of those 4 are down, while the other 2 are MIA. I'm banking on 1022 answering a decent amount of these questions (transition chapter)