They probably just intend the rule to be for just normal bolters to make it consistent.
Who knows, might change again later.
I'm pretty surprised to see castellan get a points increase before chapter approved, but I'm all for it.
I'm glad they fixed flying units charging, aircraft blocking movement, and folks taking more that three daemon princes.
Preventing non-craftworlders benifiting from jinx, reveal, and doom are also welcome changes.