If you make a 40k show and focus it on politics instead of unrelenting frontline warfare, you've f**ked up really badly somewhere. HH is where that stuff belongs. One of many reasons 40k suits vignettes/anthologies rather than long-form when it comes to any cinematic representation - done "right" it'd become exhausting and off-putting fast, and done "wrong" it may as well be any other sci-fi action.