Maybe because no one has thought about it. Has THAT thought occurred to you? Besides, it's not like we have a full-blown committee exclusive selected from the world's brightest minds sitting around thinking about a name for a hurricane!
Oh, by the way, anyone speaking a language of Latin roots from Romance Language origin of the Indo-European language "tree" is "Latin" or "Latino." Whether it is Catalan, French, Italian, Portuguese, Spanish... but if you're referring to Third World people whose ethnic/racial background is composed of Blacks, Native/Aboriginal people of the Americas and White from the invaders that exploited, subjugated and enslaved and massacred New World people, it's a totally different story altogether. We are Hispanics, not "Latinos." Spaniards are "Latinos" but they are not Hispanics because they are a Caucasian European race.