A lot of it is the narrative style that goes along with FE13/14, turning characters into exposition bots hurts the narrative.
Not even the relationship conversations are very good, and thats usually the one saving grace.
Yeah I get it - there's like 30 characters plus the kids and its a lot of stuff to write but even the S ranks are lame shit.
Character A - "I remember that flower you gave me once. I loved you since the first time I saw you!"
Character B - "Oh thats so sweet"
A - "So youre saying you dont feel the same?"
B - "No I ALSO loved you from the first time we met! Lets get married!"
every single time. The kids are also just carbon copies of Awakening characters and they aren't even trying to hide it.
Also highly disappointed there are still characters like Izuna, Scarlet and Shura who can only have conversations with the MU - making them essentially useless. Why would I ever use these 2nd tier characters that can't have any relationships?