There are thousands upon thousands of websites and web apps designed by people from the US, or any other country for that matter, that have horrible design, usability, and buggy code. Poor usability is unfortunately the norm, not the exception and the origin of the website isn't a factor.
We don't always realize it simply because we tend to see and use a very small subset of sites that happens to be nicely designed.
One example does not warrant a generalization like this. I'm assuming you see a lot of Indians neglecting usability- do you mind providing me with some other examples? Counter examples include: Naveen from Foursquare, Sachin Agarwal of Posterous.
I'm talking about startups born and brought up and marketed in India. Except a handful like Redbus, Flipkart and Cleartrip, most others are not impressive.
Even sites like Redbus/FK were not great when they went live for the first time. Over time they whipped up better usability.
Most of the news sites (like TOI, CNNIBN etc), most of the ecommerce sites(like saholic, defunct letsbuy, infibeam, homeshop18 etc).
And those examples are fairly successful enterprises despite having bad usability. Most other startups with bad usability would have obviously shutdown and unavailable to quote here.
Like @linvin commented somewhere here, Qyuki will be an interesting case study to see if content wins over usability.
