I wouldn't read too much into it. Remember, with Rossi (and many of the stories about his findings), we are dealing with people (including Rossi) for whom English isn't the native language. Add to that that the journalists reporting in Italian have to be translated into English, and most journalists (and likely most of their translators) are probably NOT well grounded in science....errors are guaranteed to show up in the final English-language articles.
Which is another reason that it is essential to study multiple reports to get a reasonable idea of what is going on.
The claim I'm disputing is from page 7 of Rossi's filed US patent application, numbered paragraph "[0038]", not an article. I would hope that Rossi made sure that he had a English-proficient scientist check it over before submitting the patent application.