My personal opinion,... and that's all it is, and I'm sure some disagree,... is that a professional pilot should have a logbook.

As for Bozo's comments on radios: he might be referring to non-towered airports ops. Many segments of military aviation never see a non-towered airport, and the pilots have no idea on radio usage in that environment. As a career military pilot who also flies GA, I have seen this plenty.
However,... they do catch on very quick.

It ain't rocket surgery.