I think the story is also trying to explain why we will feel alone and lonely. Hedgehog dilemma and missing cues in communications are some of the reasons the show has explored. Shinji thinks his dad only loves work and don't think of his mother. Shinji never notices Asuka feelings.
碇源堂一見真嗣嚟到,就叫佢:「你一係座上 EVA ,一係就走!」其實係庵野秀明啱啱去到宮崎駿實習果陣,宮崎駿一嚟就同庵野講:「一係你同我即刻畫巨神兵(風之谷片頭摧毀世界個炸巨人),一係你就走!」所以係庵野嘅角度,真嗣同源堂嘅對話,其實係庵野自身嘅經歷,投影咗係真嗣身上,亦可以知道,點解風之谷嘅巨神兵,會同美里小姐細個見到嘅使徒咁似樣。