>>45363267Kukui's thing was a marriage, Ash and Lillie are still children. Mao's brother and Hoshi/Gladion were like gags since you don't take those things seriously.
You can see that they were developing aurelia slowly to the end, and they weren't going to copy what they did last season but instead we have Lillie run back and do something a bit similar remembering her precious memories with Ash and confessing to him.