Ah, that's your problem. Didn't you know that either the red and blue options will sound better because those colors allow more high frequency sound waves to pass through? I mean just look at graphs of amount of transmitted power when you shine a light through black, red and blue filters…
Seems about as valid an argument as some I've seen. I agree that a FR graph by itself tells pretty much nothing useful. Two of them though, between 2 different IEMs and a huge 10db difference in one direction yet the reviewers comments in the opposite direction tell lots. Like there were fitment issues, user bias, etc because you can't have something swayed so far in one direction via simple measurements yet swayed as far in the other based on opinion without needing to question the value of the opinion.