Had a look at the article now… it seems to be pretty much a transcript of her TED talks, with a few changes in anecdotes.
I don’t think she does say ‘old things good, new things bad’ – as I commented above, I think she is asking for moderation and consideration of how we use the new technology – and commenting on the ways that she sees people using some new technologies in her work. I think you have read that simplification into her essay.
Yes, some of the idealizations and images might be corny, but I think there are very valid points at the heart.
“We do it by developing new literacies, new habits and new conventions. ” – on that point, I image Sherry would agree with you, all I think she is doing is questioning how well we are doing in developing these new habits… perhaps not always as well as we think or would like?