Their relatively small and provide very little content so it makes sense they should just be featured in the games category plus all the xeno characters are stated to be the same ones from the main series eg xeno trunks flashbacking to the android saga and recognizing super trunks as himself.
Btw xeno goku stated to have experienced the events of the shadow dragon arc meaning he's the same goku from gt which is blatantly obvious to anyone paying attention and plus having these small pages for one note appearances is stupid.
It's mentioned that chi-chi styled goten to look like his father so could someone add that to his page?
off topic but why does kibito kai have a separate page when he's litterally the same character as shin because he shares the same memories as shin and even calls himself such.
From a organization and in series lore perspective, It makes sense for them to have one page instead of two.