The parent didn't react emotionally and didn't even attack deep learning as a subject. He said deep learning gurus are failing to make it understandable.
Almost every one of your sentences are talking past the parent. If you want to be argumentative instead of helping the parent as he asked, then it might be best to find actual quotes to disagree with.
Here's someone else who cherry-picked a quote and ignored the central argument: https://news.ycombinator.com/item?id=14347068
Almost every one of your sentences are talking past the parent. If you want to be argumentative instead of helping the parent as he asked, then it might be best to find actual quotes to disagree with.