Sorry, probably didn't make myself clear. I meant feedback from whoever you've sent your work to, so in this case one of the producers of the show.
EDIT: Actually I think I misunderstood you - oops! All I can say is I've had some really good constructive honest feedback from people who I didn't personally know until I submitted work to them. So why guess why someone didn't like something when you can ask them.
And yes, that includes this show.