Good module!
Unless I am mistaken, a glaive is a polearm and not a sword, as described on page 10, 2nd paragraph describing the magic glaive named Devotion.
You are correct. A glaive is a polearm. The mistake is further down the page, under devotion. It should read:
“Evil” creatures touching the glaive take 1d12 radiant damage and are stunned.
Thanks for the confirmation!