You'd think that those traits, if notable, would naturally appear in the character sheet anyway. If a character is tall, the player may indicate this in the sheet. If they are very-slightly-taller-than-average, a player may omit this if unprompted. The reason I think this is fine is because being very-slightly-taller-than-average is extremely unlikely to crop up in any meaningful way.

You give the example of sexual attraction. Typically, I think the 'Having a type' thing can be dealt with in quite broad strokes. The old cliché, tall, dark and handsome are all distinct but vague features. The actual height isn't stipulated, but can be assumed to be 'tall enough so you'd notice but not so much it's freakish', the dark implies Mediterranean skin-tones maybe but definitely dark hair, and the handsome element kind of has to be assumed from context. Any of these features, if distinct enough to tick any of the tall-dark-handsome checklist, is going to be distinct enough to be put in a character sheet unprompted.

Either way, I think it's partly me still sulking that a nurse gave me sass when I didn't know how much I weighed and we're probably getting off topic, especially since my own personal gripe is mainly against weight, because it's not even a part of appearance. I typically play short males (short enough to merit an unprompted note in the CS, no less!) because it's a nice way to explore their confidence. I agree height probably is a relevant feature insofar as appearance can be, but if a player hasn't mentioned it, it's probably because the character's height is average enough to not bother to mention.