I'm a 2nd generation Haitian and I'm not surprised. It doesn't really offend me honestly, this is how many people view Haiti as a country. When I was a kid even other black kids used to make fun of Haitians. I was spared because I had "good hair" (meaning my hair is curly), I dressed well (I came from an upper-middle class family), and was never ashy ("Ashy Haitians" used to be the running joke back in my middle school).
As far as Trump goes, I'm surprised something like this hasn't come out sooner. I coulda told you what he thought of my family's country.