OK, it's me. Sort of.

  I googled  the term "daisy cutter"  and now I get it, kind of. It's a bomb and  a beer.  It's a military term and also a soccer term.  I guess it related to some powerful drive that can knock a field of daisies right off their roots and flatten an entire area.  I just didn't connect it to a papal action, and I would say the writer, in her quest to be edgy, has stretched the metaphor to where the meaning is murky.  Roses AND daisies---you're trying too hard.   Moral: We're never too old to learn.  (Or to criticize either.)