SRI is a respected brand with a great reputation and history. I wouldn't be so dismissive of marketing since, as you mention, you have recently exited stealth mode.
I am trying to be helpful when I say that for a company that produces language processing technology, your customer-facing content shows a strange disregard for language. If your writing does not demonstrate that you have mastered English grammar, why should I believe that your software has?
All cards on the table, there is a lot of discussion internally about who we are writing for. The result is we get a mish-mash of copy from Engineering and Marketing.
The PDF I linked to is much better because those were targeted to Engineering managers. The website still doesn't know who it is targeting. http://www.tldrstuff.com knows its audience it sucks much less.