Maybe the religious greeting is being taken out of context.
The real issue is that the work is not up to standard. I'd suggest your friend deals with this professionally under the company guidelines/service level agreements as they would with any other colleague/contact rather than being sidetracked about what greeting is being used.
The real issue is that the work is not up to standard. I'd suggest your friend deals with this professionally under the company guidelines/service level agreements as they would with any other colleague/contact rather than being sidetracked about what greeting is being used.