the problem was also about the nature of the crons.
Tomb Kings may often be pretty insane fuckers, they are basically humans. That happen to be dead, which sometimes made them prone to butthurt and raeg, but still able to deal with foreigners in a civilized manner if they don't behave like cunts either.
The crons, until now, however, are an alien species, frustrated by their own mortality, driven by hate and resent (or an incredibly obsessing, alien equivalent of it) and turned into something that borders with magic thanks to a mind-bending, physics-raping technology. Not to mention avid star-gods that lobotomized most of them.
That's a huge difference.
love or hate the Ward retcon, but understand why the whole BA-Silent King broship didn't make sense so far.