It may have been left out on purpose in 6. Was it even in 5? To me, the design philosophy starting from 5 is that the game should be less of a map painter. Hence, maybe the 'look how you painted the map' was seen as less important? Yet, it should be quite easy include this 'follow the game on the minimap in fast forward' accompanied by a scrolling list of important events, and have a hall of fame. I never understood why it took years to include a hall of fame in civ 6, when the respective score was calculated for each game anyway – all that was missing was the menu that showed it in comparison to past games.This was how i played too, i loved watching the playback on the map and seeing key moments again on my route to world domination.
I have no idea why this was taken out (dont think it was in 6 either?)
I think, for 7 these could potentially even be more interesting. A hall of fame could be per era in addition to the whole game. And as it includes not just your civ, but all civs, leaders, and mementos, comparing outcomes might be more interesting than just seeing which Rome game was your most successful, but that you fared better with Rome/Abbasid/French-Isabella than with Rome/Abbasid/French-Augustus, and it is because you had a much better exploration age. For the playback, it would also be interesting to have a little summary at the end and start of each age.