>>280882294
Fujos like to ship Gintoki and Hijikata, yumes self-insert as Kagura and ship themselves with Sougo.

For Japan(with 80% female audience) I guess they can make the most popular ships canon, Ginhiji could be a little tricky, but Gin already fucks ugly old men in canon, getting him to fuck a pretty boy would be easier.
Also Kagura is 16 after the timeskip, this means they can add more ship scenes with Okita without worrying about the age gap.

>>280560660
Top Gintoki is more popular