That's because he's embraced bumfunk.
"Burial revealed his conversion to the new dance movement - a mixture of Clit 'n' Bass with the darker elements of Bowelshift - after failing to win this year's Mercury Prize."
He is teaming up with neo-Fudgecore artist Crank 2526, who...
"...is a genius. He has taken the thud, thud, thud of Dubstep and added at least two extra thuds. It's totally cronking."
This is all completely true. Full story on the ever reliable Daily Mash here. (Contains naughty words.)