Exactly my impression, I had a hard time to understand (maybe) what is the actual "scope".
But I would say "Show, besides tell", right now not only the "show" part is missing, but also IMHO a clear, simple "tell" part (a small text describing what is offered would be enough).
As a customer, I find of little (actualy no) use the paragraphs about sending a text message in 15 seconds with this (or that) scripting or programming language and I sincerely don't care about Mr. Hanselman's opinion on .Net 5.
As a side note, being not a native English speaker, I could not understand quite a few things on how your "Plans" work, I had to look on a dictionary for "Overages" (and even after having read the exact definition I am not too convinced it is the right term to describe what you charge for each message exceeding the included amount).
As well, probably it is a language barrier, but I would much better understand "Text messages" than "Texts".