Da steht ja aber nur:
Wenn sich die Armee in Schlachtordnung befindet und Craftworld-Kontingente enthält [...]
jetzt steht im FAQ aber:
If Yvraine, the Visarch or the Yncarne is included in a Detachment, all Aeldari units in that Detachment gain the Yn nari keyword. These units cannot use any of the following abilities, and are not considered to have them: Ancient Doom, Battle Focus, Rising Crescendo, Power From Pain. Instead, Ynnari Infantry and Biker units gain the Strength from Death ability, as described below. The Detachment is still considered to be a Craftworlds, Harlequins or Drukhari Detachment, and so can use Craftworlds, Harlequins or Drukhari Stratagems, Warlord Traits and Relics respectively. Note that these units will not, however, gain any of the Detachment abilities listed in their respective codexes (such as The Path of War, Craftworld Attributes, Masque Forms, Drukhari Obsessions, etc.).’
Das spricht doch eigtl. dafür dass man keine eigenständigen Zusatzkontingente benötigt.