To clarify my question, I want to emphasize that this blurb states that this is "When selected for additional screening" at a KCM checkpoint, which not every airport with airline services has.
If there is no KCM checkpoint then you can't be "selected for additional screening".
Are crew who are part of the KCM program authorized to use TSA pre-check lanes in the total absence of a KCM checkpoint at the airport both in and out of uniform, only in uniform, or not at all? Please find an official source. I have failed to find anything other than random back and fourths on internet forums and non-official websites such as Knowncrewmember.org.