My goodness, NBC Sports Radio, this is not the way you want to gain attention. The tweet has of course been deleted and the apology has already been posted. Although they may have to send an apology for the apology because of the misspelling error.
C'mon people, Twitter shouldn't be this difficult!
Not all "ing" endings are gerunds, i.e., nouns. In this case, "misspelling" is an adjective, so the criticism of the NBC apology is grammatically correct. What are you, some FSU fan? Good grief.