Yore Huckleberry

here's a weird one: what's the timing resolution if Cad Bane throws "How About You Step Aside?" at Obi-Wan, Out of Hiding with his "Greater Purpose?" HAYSA reads (in part): "If the chosen character is still contesting the chosen objective, it gains and ! and strain" GP reads (in part): "When this unit would gain !, one character in this unit may recover instead." So ... does Obi receive the conditions "simultaneously" enough that the heal can be used on the strain? Or do they come in left-to-right, such that Greater Purpose goes off and resolves, then the strain comes in (and the Greater Purpose !-to-recover conversion can't be applied to the strain)?

Would Darth Vader, Jedi Hunter be limited to using either Riposte or The Sith Lord Strikes Back against a given attack that wounds him, or are the timing events distinct (eg, "After a melee attack" and "when this unit is wounded")? The core rules says " Each player may only use one Reactive (I) ability in response to a single triggering event," so it seems to me that the question is whether the attack is one event and becoming wounded is another, or if they are somehow considered the same event?