Not so long ago two books came out.
One of them made people on the internet flip their beards and go silly, perhaps veins popped out of their necks as they feared templates of death would rain from the sky and kill their beloved super unit.
Who knows?
Another book came out, and was mostly ignored.
The former book was of course "Escalation" the latter being "Stronghold Assault"
Most people for some odd reason felt these books were not standard
40k rules. Nowhere within the book does it say it is optional, albeit there is a section of optional rules within stronghold assault, just as nowhere under the flier rules for Death from the skies does it say optional [outside of dogfighting], just as nowhere in the Space Marine, Chaos Daemon, Tau, Eldar, Farsight, Iyanden, etc codex does it say optional.
These books were even printed and sold at stores, unlike dataslates, where you can purchase all of the other non optional standard
40k books.
Some people have stated that these rules should be optional because these models have no place in
40k. Prior to 6th edition many people made the same statements about fliers, which were only found in Apocalypse at that time, and are now found in standard
40k.
I am not going to try and discuss with anyone why these rules should be standard, they are standard. There is no basis of argument of whether the core contents of Escalation is optional or not, or Stronghold Assault for that matter.
Rather I would like to propose the idea that a large amount of the community [online at least] had such nerd rage that these rules came out, that they wanted them to be outside of standard
40k and optional.
GW however I propose felt a different way, they want the community to accept it and move on as they are now part of the direction of
40k.
I propose the Knights were sculpted and developed for the sole purpose of ending this sentiment among the internet community.
GW knew that releasing a model, without mentioning Escalation, that was available to all imperial factions [almost every person that plays
40k] and uses rules out of the Escalation book, without mentioning Escalation, would allow them to subvert the thoughts of the vein popping out of neck internet angry 40kers and slowly corrupt them and bring them into the empire of what
40k has become.
I further propose that Jervis Johnson is indeed a sith lord, and this was all his plot.