The problem is, a major feature of NLP/LLMs is to make it easier for humans, remove rough edges in the content/interaction and make people happy about dealing with computers. The human-computer interaction has always been brittle. Computers were not kind and helpful in their responses. There was no forgiveness. There was no human-like additional talk to explain things. There was no conversation. The entire technological transformation is to bring the technology closer to humans and make humans feel comfortable.

I'm sure you can make it to output the exact issue details as you want, but it starts with a human-like tone and waits for your requirement on depth and detail of the things. Another option is, just check the output of the traditional test runner (non-AI). It will give the full details.