These are his answers to unreported questions, thus, not subject to editing (unless you want to edit the copy with [sic] after every syntactic problem you see). Imagine every stanza in quotation marks - there, fixed. 

I agree the format is problematic. Magazines do use this format frequently now, by only publishing the answers and not the questions posed.  It's a format best forgotten, and soon. The "interview" has no flow and takes away from the very interesting things he has to say.