Why should one not insist on a unique completion for “law shahidta dhālika al-mawqif ...” without context?

Supplementary Practice 6: Rhetorical Dialogue, Responding to Objections and Choosing the Right Expression

• The result is omitted, but its exact content is not determined
• Every omitted result necessarily implies fear
• Omission makes every imagined result equally certain
• Grammar alone selects one exact deleted response