I guess for me, knowing that The Bad Batch was planned prior to Rebels, and knowing Dave was highly involved in that opening sequence (and in most major beats of the show), I don’t mind him having the definitive say with his characters’ backstories.

Dave really views the franchise as being for kids, so it makes sense that he lightened up how this part of the story was told and included it in his kids show set between his other two kids shows. He’s never been slavish with continuity, and he’s always been the one to lighten the tone.

I don’t think there are too many other places with overlap, but I’ll be honest that I’m not in the know on every comic and book. There are just too many. The team tries to avoid continuity issues, and fixes them when they can… but sometimes continuity is going to break simply because of how many storytellers there are.