While I agree that often a deep cut in the secondary reed will spoil a call, a small nick can often be overcome by some precision shortening of the entire reed or a portion around the nick. Sometimes works,...sometimes not. In addition, on some calls where the high-end of the yelp is hard to break over, a nick in the secondary reed can solve that issue.
I made up one of the "boss hen" designs with two layers of natural .003 (speculated that perhaps that was the composition of those calls from the makers,...don't know for sure). Tried deepening the end cuts just a tad,...didn't help. Then shaved off the primary reed from center to the edge cuts and made a V-cut,....didn't work much either. Went to the combo,...no dice. Finally went to the batwing,...didn't sound great, but better than the other options.
Based on that, I would say that converting the "boss hen" to a combo or batwing might be the solution for a bad factory call. May try another one and convert to a ghost cut and report on that later.