Why does the affirmative imperfect “yafḥaṣu” appear without wāw as ḥāl?

Supplementary Practice 14: Scarcity, Evidential Scope and Rhetorical Precision in Public Communication

• The imperfect must be parenthetical rather than circumstantial
• Only a circumstantial wāw could link the two
• The normal positive-imperfect ḥāl construction, linked by a concealed subject
• An affirmative imperfect must always be a coordinated clause