People find them quite easy to check - easier than the raw document. My angle with teams is use these to check your processes. If the flow is wrong it’s either because the LLM has screwed up, or because the policy is wrong/badly written. It’s usually the latter. It’s a good way to fix SOPs
I still review each diagram afterward, but the great thing is that, unlike image-based diagrams, they remain fully text-readable and searchable. And you can even expose them as part of the knowledge base for the LLM to reference when needed going forward.