The whole game has an impressive depth and the ending as it is now is quite fast in regards (after the last fight) in pace or content.
Each character is in queue for its ending and the player needs to carefully think the last choices so I get it why Larian wanted it to be quicker overall.
What I would have really loved in the end :
A last camp scene (in ruins of course) where every survivor gather as there is no more rush and it would feel so much more natural.
If anything stayed in rush (I obviously don't know every ending) and had to be taken care of asap, it could be done before last camp scene.
In the camp the player could launch the bit of ending wanted with the related character(s) in the order and pace desired (maintains agency).
Then a proper romance night/scene conclusion in its coherent atmosphere.
Ultimately the next day you get the epilogue with departing members or other non party NPC giving farewell/resuming their life.
And an overall conclusion by the narrator.
That is in my opinion the dream ending befitting that incredible game all along for a final edition.
