You make a salient point. I'm just glad the autists that "just love 40K!" never discover Blood Bowl. Gee Dubs didn't fuck that one up too much with the new ruleset. Guess the fedore-tippers who hate sports don't see the appeal. Good.Games Workshop themselves are also to blame for it. These lore videos don't spawn out of thin air, their creators read that shit somewhere else and then sum it up and spew it out onto youtube. Even before the current crop of derptastic lore like the Primaris Marines and the Imperium Nihilus, GW had been treating the lore like complete "srs bsns". for a long time. I started following 40K in 2001 (no money or patience to assemble and paint plastic crack, but I've always kept up with the rules) and back then Black Library was still releasing its first books. 20 years later and they've got what? 200? 300 books released? That's a lot of canonical sperging for a game about Your Dudes fighting someone else's Your Dudes for completely arbitrary reasons.
40K is old and crumbling under the weight of all the shit piled on top of it over the years. The lorehammer fans who have never rolled a d6 in their lives are just a symptom of it.