User blog comment:Eobard95/Savitar's timeline/@comment-27673963-20170918021317/@comment-26624146-20170918040120

Actually you just made me realize the one hole I forgot to mention in this post as to how 2056-Barry knew Savitar's identity and if you don't mind I'll add that into the post.

But Barry arriving in 2017 and seeing Iris die already changed things since Plunder was caught by Barry in that timeline but was then caught by Wally instead so I think Savitar intentionally forced Barry into the future to watch Iris die.