Interesting to watch a discussion like this blow up. I see everyone's points in the whole matter. I think I would react differently if I'd grown up in the UK and heard more of the good and the bad, and been exposed to the culture surrounding various genres, I'd hear the music differently.
The context in the US is different. Unless you spend a lot of time watching the UK scene, you only hear what bubbles to the top of the pile. What I find interesting is how many Indie rock types in the US picked up on Burial. Probably looks like poor misguided Yanks getting it wrong again to people in the UK. OTOH to us, it looks like you drive on the wrong side of the road and add an extra syllable to aluminum to sound posh.