For most folks in the US, understanding a Spanish accent is easier than most Indian accents. This is especially true for lower paid support roles.

Maybe so, and many Americans aren't understandable to me as an Indian. I just wanted to point out that not being understandable is a statement about the person making it as much as it is about the people it's ostensibly about. Indians, in this case,

Totally get it.

I grew up in a weird household, with half my family with strong Irish accents and the other with strong NYC accents. When I moved away from New York, almost nobody could understand me at all for a few weeks. A few teachers thought I was a non-native speaker.