It reminds me of when people were doing PowerPoint in school. People thought spending three hours in PowerPoint meant you actually did something productive, but all that time got you were some decent-looking presentations. You still had to write the actual content itself.
Keynote is great here, because the default settings are pretty great as it is, so you have fewer ways of deluding yourself into thinking you are being productive, when you are actually just procrastinating by rearranging the furniture on the Titanic.