My bikes all have very narrow Q. As little as 134mm and high of 142. Requires antique parts. My brother, who is sometimes mistaken for a twin, wants >160mm and will not complain about >170mm. He is not wrong.
Short riders on wide cranks can look like they are trying to ride a big horse. For those riders it is sort of obvious they should try narrower. Anyone else it is guesswork. If it works for you, good enough. Trying something different is always worthwhile. Even if you hated narrow (wide) last time you rode it give it another try if some years have gone by.