I'm sure that quote could have been better written, but one would guess that he shows little sign of a regional accent or dialect. After all, an example of a Norfolk dialect is a little away from the usual English:
He yer fa got a dickey, bor?
Has your father got a donkey, boy?
.
Yeah, but hardly anyone still speaks the Norfolk, or indeed any other English dialect. And it's still an English dialect. Can't help but speculate at a bit of prejudice, or at least ignorance, on behalf of the journalist in question.