I would see a purpose for Xander and Chanel if the storyline was still going on. What exactly was the point to them getting married and trying to scam Paulina if they've already been moved into their own separate storylines?
IMO Michael Mealor vaguely works as Alex Donnelly’s son, so his Kyle doesn’t bother me lookswise. The problem for me is the mushy characterization. To start, the show wasn’t quite sure if they wanted him as a wild Lothario in a nod to Jack’s early days or a salt-of-the-earth romantic hero, and now he’s just bland.