I'm not sure if that has to do with a perception of talent or simply a presumption of a language barrier, since I've also seen a fair number of devs from India post content (both on blogs and on places like Stack Overflow) that make me question their communication skills.
It may simply be a case of many people = higher number of proportional incompetence.
Edit: To add, it may be a higher number of proportional sub-par content coming from India due to greater degrees of internet access.
Full disclosure: I'm originally from Sri Lanka, now living in New York.