This letter says nothing wrong and Lana can put her name to it if she likes, like the many other celebrities who have. The criticism some people seem to have is what the letter doesn’t say. I personally think that celebrities shouldn’t sign open letters which tend to be broad and bland. If they really feel they must comment, a statement should be personally issued so it can be more nuanced. I can only imagine the pressure to sign them though and avoid the “Lana Del Rey refuses to condemn terrorists” stories. If you feel it’s a mistake, it’s a small one and doesn’t mean anything anyway. Stop holding her to some sort of impossible standard please. She’s just trying to be empathetic.