NC (or actually the NC realtors) are known for always trying to limit what inspectors can put in the required summary section, but in reality, no real hand tying has been accomplished other than rules about quoting code and upgrades. What they have done is create some fuzzy language that makes the realtor friendly (soft and lame) inspectors think they have an excuse for hiding information from the buyers.
edit: removed some other info, having to double check something with my CE provider…
update:
For those that do not check chimeny flues, heat exchangers etc. You can list any safety concern with these in the summary so the buyer fully understands the limitations of an inspection and their right to have further technical evaluations done before they buy the property.