As someone who liked your documentaries, I think you're misinterpreting the previous poster. 'Production values' doesn't refer to skill or attention - those qualities are clearly present in your work. It just refers to those aspects of a work which are simple functions of money spent. To say your work has low production values, then, just means you clearly didn't have a large budget, which is true but nothing to feel bad about - you did a great job with the resources you had.
I'm hoping that's the case, and I'm sure I'm oversensitive on this topic. It's just that subject was particularly important to me, and any impression that I didn't care so much about capturing that story before the chance to get the story was over just makes me over react.