Without watching the video, my main reasons for immediately dropping the game are... No, is: A distinct lack of immersion.
You can subdivide that point into reasons such as:
-Technology names are bland, sometimes weirdly chosen, and do not make you truly feel as though you are progressing through archetypical ages (think of the medieval era, and you think of castles, feudalism, theology, these kind of hallmarks, and so on).
-Buildings/districts/bonuses are bland; on the one hand, some in name, like the above point, on the other hand, the game revolves around spamming districts (which further reduces them to generic 'Industry Quarter' which is not immersive) and/or making the perfect jigsaw puzzle.
-Yields are... Weird. Complicated, on one hand, with many possible interplays - irrelevant, on the other hand, as in, the balancing is seriously off - these points combined further increases the feeling of 'oh let's just queue up whatever thing has a +Production and not look at their name/image', i.e. reducing immersion.
-Diplomacy/friendship/roleplaying immersion is hard, when suddenly the Phoenicians have disappeared and I have no idea who they are now.
-Plus, despite the AIs having agendas, I never felt they had recognisably distinctive personalities as Civilization IV's AIs have.
-I also think the ultra high movement speed contributes to this; you're racing all over the map and have less of a feeling of 'this is my land'.
-Added to this; the game speed itself is ultra fast (yes, I play a modified Marathon that is even slower, tech-wise; experiencing every technology, era, and unit to the fullest does a >lot< for immersion).
And so there are more points to make, but I am at work.