The brazen lie is the best kind
The key to persuasion is to surround the brazen lie with truth and then smother it in visual noise:
8.6 > 8.9 and 8.8 ≈ 8.5, and the graph pulls it off. Chapeau. I think the key here is that much of the graph is correct (all the instances of 9.1 match up, etc) and there's lots of visual noise.