What's nonsense is locking civil time to atomic time. There would be no need for leap seconds if civil time simply remained linked to astronomical time, as it was for millenia.
Oh, and NIST - at least the person responsible for the leap second file they distribute (Judah Levine) - really has a very poor understanding of how leap seconds work. He's actually stated that "In the legal definition of UTC, a leap second is "forgotten" once it happens." That is, of course, completely incorrect. No wonder NIST wants to drop them, they don't understand them.