Normally I am all for mixing it up to stand out. However the example provided was a bit unusual. The employer said he got a cover letter from a girl. And the girl included interests like "long walks on the beach" and "romantic candlelight dinners" in her cover letter. WTF?
Who knows? Maybe if I were hiring and a supermodel were applying, it would help her to put unusual phrases like that in her cover letter. By why bother with that?
If you are a supermodel, you can just attach your picture to your resume. No need to waste time. I probably wouldn't penalize a supermodel for spelling mistakes either.