I didn't misread anything, but probably you did.There was argument between him and docend, that there are players that are close to play on 2 positions that are not "neighbour". And Knechts doesn't believe there are such a players. So I just confirmed there are.
Still you have misread Knechts proposal. He has been talking about "neighbour positions" since the beginning. So a PF "could" only get a PF / SF or a PF / C in his system.So that´s like Knecht proposing the hair colour to be red / brown / blonde/ black and you keep insisting that there´s different kinds of green in the real world.