IIRC, both the Haken album and LTE3 were delayed so that's why they were available so "early" to reviewers.
As for the current promo cycle for DT, it's pretty standard for Inside Out to start promoting their albums 3 months before release. It was the same for DOT and most of their big releases nowadays.
If they continue their usual practice, we should be getting a single quite soon and reviewers should be getting their promo copies too.