No, the language is:Kaetlyn is a seeded skater who has in effect declined to be assigned to the GP and instead has decided to do a tour that coincides with the GP dates. She should be OK if she is taking the year off. But if she was contemplating doing the tour, and then returning to compete at 2019 Worlds, the ISU could impose sanctions on both her and Skate Canada, according to the language in last season's GP announcement.
She hasn't been assigned to any events, so this does not affect her.If any Seeded Skater/Couple elects in advance of the Grand Prix Period not to participate in their assigned events (for whatever reason), they will not be permitted to participate in any other competitions, shows, and exhibitions during the Grand Prix Period.
Beyond which, Kaetlyn and her coach know how the system works. There's no reason to think they haven't dealt with this.