(Allowing the close would defeat the purpose of the Wight rule in the first place
Maybe I'm not following, but why would it?!
From what you describes, sounds like the following would be legal:
- Defeat Zombie Minions
- Look for boon, don't find any, summon Wight
- Defeat Wight
- Attempt to close (due to defeating Wight)
- fail to close
- Attempt to close (due to defeating Zombie Minions)
Note, that sequence would NOT be allowed pre-Core were 'closing henchmen" wanted you to attempt to close 'immediately', but now that restriction has been lifted.
Still, it strikes me as a bit odd if the above sequence is intended as it's not punishing enough for what I have come to expect from PACG, but from what you explain - sounds like a perfectly valid play.