Shurrak attack timing question

[Dumb Dwarf]

First off, I understand that in order to be affected by the special attack victims have to be adjacent to the Giant, and the target both.

I also understand, that 4 is the accepted max number of victims.

However I have some questions about the timing of abilities, and I can see this argument quickly developing at some gaming tables.

In the extremely rare circumstance that your opponent lines up his figures like this... S S being Shurrak a-e being different small and medium figures, and that b is the target of Sweeping Sword.

a b c
S S
d e

Assuming that the attacking player chooses the order that multiple targets roll defense. Shurrak hits a, then c, then b.
Assuming that b survives, and Shurrak successful rolls for Knockback, and places b in such a manner...

a _ c
S S
d e
b

Would d and e now be eligible targets of Sweeping Sword, since they are adjacent to both Shurrak and b.

Yes I am most likely thinking about this too much.

DD