exactly this. i'm 5'11 so to me it feels ridiculous to call 5'7 tall
but i also realize it's above average so i'm not going to act like it's short or average when it's not.
compare it to something like female hair length. let's assume for example's sake that the average female has like, mid-chest length hair. Having shoulder length hair would be shorter than average but calling it short hair
would be confusing because women still have pixie cuts and shorter, which is undeniably short hair.
it's just about finding middle ground between letting extremes determine the whole spectrum vs ignoring the extremes completely.
i feel that calling 5'7 tall only makes sense if you ignore that women can be much taller (muh erasure /s) but calling it average or short or average lets the existence of women with a rare height completely tip the whole scale. Simply calling it above average is the most accurate.