We barely saw some characters interact with each other. Thor with Natasha, or Vision's relationship with the rest in the early days. I think it would make Civil War even more emotional and help people appreaciate more secondary avengers that didn't get enough spotlight in the movies.
I would have liked an animated show that showed more of the MCU Avengers and their interactions. Kinda like what Clone Wars did for the Prequels. (Develop the relationships and put more context)