I'm sorry but IMHO you've missed the point. With spiritual understanding, it's the means that count, not the ends. Only through experience and reflection can spiritual understanding be attained. What you call a mere "reinvention" is the creation of something unique. To you, the product appears superficially similar to other spiritual products, so you are happy to equate them.

But the author's spiritual understanding is indeed unique. It's not simply an affirmation of the primacy of unconditional love, but also an explicit rejection of any other spiritual motive. I haven't read Ecclesiastes, but from your depiction, it only partially addresses the first part of the piece. "Making the most of your day" neither says anything about what positively constitutes "most" (to the author, "most" is the result of acting with unconditional love), nor what negatively constitutes "most" (killing for God, etc).

Indeed it's important to remember to make the most of your day, but for the author, it's equally important to frame impulses that disregard unconditional love as wrong. The fact that he took the time to express this point indicates to me that he doesn't believe it to be broadly held. Thus the piece also represents social comment, far beyond a mere reinvention of something.