Well, firstly darkseer rammed us full with deathwing. Extremely over the top. Then we had a huge necromunda segment that he did independantly of the SG team.
Basically, SG has come bottom of the priorities throughout. Hence why the ork tactica article for issue 1 has no pictures, even though they were submitted. Poor planning meant that instead of spreading deathwing over two issues, we got it all in one with no SG articles.