The rebuttal was pertinent and polite, and (almost) provided a reference, so I really don't think it can be qualified as nitpicking. Your statement was a bit exaggerated for effect, so you can hardly criticize someone who responds to it, for effect.
I suggest you avoid the knowingly broad and include nuance to your arguments. I like the suggestion of adding "generally".
I suggest you avoid the knowingly broad and include nuance to your arguments. I like the suggestion of adding "generally".