I think there is some adjustment happening, and I've never had great Indian food here. It's certainly not as large a part of the cuisine as it is in London.
I find the same thing happening with Mexican food with regards to dulled flavours.
I recently moved from Utah to Wisconsin, and the drop in quality of Mexican food is astounding. Even the gringo-ified chains in the western United States are better.
I find the same thing happening with Mexican food with regards to dulled flavours.