Yes, I think they certainly don't write bad emails because they don't care. They might write bad emails because they care too much. They may think about their product constantly, so stating the obvious about it doesn't even come to mind (and I generalize horribly here).

Good slides btw, worth checking out for anyone. Many startup email writers may be even too conscious of following the AIDA guideline and thinking that in order to grab the reader's attention, they have to open with the feature or the announcement, instead of reminding what it is that they do. Happy you address the 'noreply', too.