Comparing Electric Counterpoint Performances

The first performer of Reich’s Electric Counterpoint was Pat Metheny, a prominent jazz guitarist. More recently, Jonny Greenwood, the guitarist from the rock group Radiohead, has been performing the piece on tour. Watch the video of Greenwood’s performance, then in a reply to this post, respond to these questions:

How do Methenys background in jazz and Greenwoods background in rock influence their particular interpretations of the piece?
Do you think that Reich is a rock or a jazz composer or neither? How is such genre bending an expression of a postmodern attitude toward music?

Link to video: https://youtu.be/Nd72m_29-lA