So yes, it is a time travel story, information being relayed to you from the future is information traveling through time.
You're saying it's "travel" because information travels through time.
But a lot of other people relate "Travel" with humans, meaning it's the human that travels through time.
In fact, most people when they hear about "travel" think of human as its subject, not non-human objects like information.
If you stretch it that far, basically any story with flashbacks is time travel, because information travels to present from the past.
I suppose that we could say that the point of the story is to show that time is not what we though.