"Wait, this code is hard to understand and requires deep domain knowledge. Better nitpick the code style instead. Also, bikesheds should clearly be orange. Green is way too fishy."
I have domain knowledge and I've read a lot of code in my time. The style in use there is peculiar. That doesn't mean it is malicious or incorrect but it might make it easier to hide if it was.
"Wait, this code is hard to understand and requires deep domain knowledge. Better nitpick the code style instead. Also, bikesheds should clearly be orange. Green is way too fishy."