I agree to an extent. Its why i mentioned it would be interesting to see it as an add on feature. Like a DLC, optional to go beyond the campsite and see re-explore the world. Theirs nothing beyond what was already mentioned. Astarion mentioning he became a vigilante, so you would be able to encounter him either in baldurs gate sewers or the underdark. Gale saing he became a professor, so you would see him in waterdeep teaching.
Its nothing that isnt already mentioned in the camp epilogue, just being able to run around the world in the aftermath and see the characters in their won ending.