Originally Posted by Son of Coul
I see your point of view, but I think that's exactly what they're going for. They've hinted at themes of "ghosts from Cap's past" coming back to haunt him and that tying into his trouble adjusting to modern times. They seem to know what they're doing, and if they've found something strong, the return of Cap's past can enhance his out-of-time issues in this, rather than diminish them.
How could they not have ghosts from his past come back to haunt? It's great storytelling.