User blog comment:TheDoctor230/Barry Hasn't Defeated a Big Bad Yet (Technically)/@comment-26537965-20180110135435/@comment-27700324-20180115205703

They were still affected by her death after four years. They would not accept him. It was all about that more than anything. However with Barry, they have forgiven him for that. Because he is Joe's kid, Iris's fiancee, Cisco and Caitlin's friend etc. However Savitar was just a clone. To them, he was just a foot soldier in their fight against Savitar. That led to him becomeing a different person because they treated him differently and he embraced that difference. The reason why they can't be the same.