I don't think the suggestion was to job hop. My read was that they were suggesting to just always be aware of the market (hence the don't have to apply line) so

I don't think the suggestion was to job hop. My read was that they were suggesting to just always be aware of the market (hence the don't have to apply line) so that you can jump at the perfect opportunity if it comes up, or if something happens to change at your current employer that would require you to search for another job, you're already ahead of the game.