Did you even read my post? I even put the takeaway in bold for you. The black curve is not Harman's headphone preference target curve (that would be the blue one). The black curve is purely the response of a neutral loudspeaker (anechoically flat) in a good room measured by an ear-simulator within a HATS (Head and Torso Simulator). Etymotics have bass 5 dB below this response. If this is what you prefer, then that means you do not like accurate, neutral sound, but instead prefer bright, bass-light sound. If you also prefer this bright sound in speakers (read: flat in-room response i.e. upwardly tilting anechoic response), it's likely you have noise-induced hearing loss or presbycusis, both of which primarily affect higher frequencies so reduced bass can make these relatively more audible. If however you actually prefer accurate, neutral loudspeakers, yet you still maintain you also prefer the bass-light sound of Etymotics, the only reason I can think for that is subconscious bias from their visually flat bass / their false reputation as 'neutral' influencing your judgements.
Did you read my post where I stated that I find the ER4SR a better representation of the music I listen to? Why would I be benchmarking against speakers when I attend concerts on a regular basis (COVID permitting). Why would I be benchmark headphones against speakers rather than against real music?