I like the idea but I am not sure if it fixes a real problem. I don't think I have ever had feedback from clients complaining they don't understand the text.
Where did you get your validation from?
Edit: Looking at the amount of likes/tweets you seem to have social validation, just not sure where I would use it.
The more specific your mockup is, the narrower the feedback will be. For example, using colors or text in a mockup often limits the feedback to "I don't like this particular shade of blue" or "There should be our slogan here". Source: worked for a web agency.
I worked in the advertising world for a few years and I would say about 50% of clients were confused by "lorem ipsum" text. (The number of clients confused by a UX mockup and an actual design prototype was around 90%).
Where did you get your validation from?
Edit: Looking at the amount of likes/tweets you seem to have social validation, just not sure where I would use it.