Well if the perfect thing in 1 Corinthians 13 is the complete revelation of Gods Word thru the canon.. 3 gifts still remain, but the others fulfilled their purpose.
This position isn't that the gifts were NEVER valid, or that the Holy Spirit doesn't work today.
That is a non-christian teaching.
The Holy Spirit still guides,teaches,rebukes, convicts, encourages, can be offended.. seals believers... is in the midst of a local church... is fully God... etc..
Anyway... repeating myself. Point being the cessation position isn't denying the Holy Spirits power, but honoring that God doesn't work the same way all thru history with people.