Having encountered this bug RE: Left-Claw and Tunon's wrath, I appreciate the clarification.
However, the game in its current state (original game, Disfavored path, should be on v.1.1.1.0094) reflects the opposite. You can only avoid Tunon's wrath (Hawke64's 2nd image) if you free Left-Claw without getting all available evidence.
You incur Tunon's wrath for the same judgment if you fully investigate, i.e. tell Left-Claw that you will hear more evidence, get the rest of the testimony from Left-Claw and the villagers, and then free him with a warning. Your Reputation page shows that deciding to free Left-Claw, not how you arrived at that decision, angered Tunon. Which is strange, of course, given the wrath-less option above and the information in this thread.
Please refer to the attached screenshots for the difference between the complete (1-7) and incomplete (8-9) investigations. Please note that I spoke with the same villagers, chose the same dialogue options, etc. leading up to the screenshots. Apologies for any unnecessary details, and thank you for your attention to this issue.
Edit: unfortunately, I missed the dialogue option chosen between images 5 and 6. It was option 2, the same text as chosen in image 8.