Do as I say, not as I do?

I submitted my resume for a free "resume critique" online and here's one of their generic suggestions:

"After you re-write your resume, don’t forget to check your spelling, grammar, and punctuation before using it to apply for a position. More often than naught, people overlook their own spelling and grammatical errors."

You have got to be kidding me. (Maybe it's a cheesy joke but I didn't see a smiley or anything else to indicate a "wink, wink".)