Doing So Would Let Georgie Maintain His Promise To George & Not Cause A TBBT Plot Hole
Even with Georgie & Mandy’s First Marriage’s different focus compared to Young Sheldon, Mary, Missy and Meemaw should return past the pilot, as it would not make sense for them not to, living just across the town from Georgie and Mandy. Mary and Missy managed to appear in Big Bang Theory despite living miles away, so they should appear just as much if not more in Georgie & Mandy’s First Marriage given their closeness. Not doing so could not only make fresh new plot holes for TBBT but also for Young Sheldon, given Georgie’s promise during George’s funeral.
Even with the three Cooper women not being able to appear regularly and not being part of the main story, Georgie & Mandy’s First Marriage could include them in decisive moments, making them still feel part of Georgie’s life if not of the couple’s and Georgie & Mandy’s First Marriage’s. This could at least establish some continuity and not entirely negate Georgie’s perspective of the months after George Sr.’s death as recounted in The Big Bang Theory, only conflate it, if Young Sheldon’s sequel Georgie & Mandy’s First Marriage’s priority is to just focus on Georgie and Mandy.