They could've given them something science-isch to counterbalance it, much like the fyreslayers have their technicly-not-magic endless spells (or even khorne). In general KO is massivly lacking in terms of magic and needs some kind of equivalent there. So it's kinda surprising they didnt get something. Admittadly, maybe they get some other nice toys. The cover is a bit too 40k-ish though. AoS usually has a bit more grandeur and splendour in it. This is rather grim with muted colours by AoS standards.