Kiriko’s feedback (https://www.dexerto.com/overwatch/overwatch-2-players-argue-that-kirikos-age-makes-no-sense-2284264/) is unlikely to be ignored. and let it be clear that OW1 was not exempt from these distractions. I remember well that they changed Brigitte’s age which didn’t correspond decently with the description of the “white dome” mission. Or even mccree / cassidy in 2016, when they changed his age because he would have been too young as a new Overwatch agent.
on mercy … stop it 
, she doesn’t have any kind of inconsistency and is explained here. instead, focus on more relevant feedback for Sojourn’s age with her book. 