Vladimir's english does make it hard to discern writer's intent. I might be giving him too much benefit of the doubt, but it seems hyper-sensitive to call racism on this.
I read it, and thought he was just talking about a Dwilight-SMA version of an asian who was lazy. I've not paid much mind about the 'local' peasantry descriptions in Dwilight, so I wouldn't doubt there's an asian racial type RP'd somewhere. Nowhere does he imply that a group is lazy, but that the character found this person to be lazy.
The 'slanted eyes making him seem always asleep' may have been an off-colour joke, admittedly. But, like LGMAlpha said...unless someone is offended then it remains inoffensive and benign.