From Fedora Project Wiki

Problems with Blueman as a default Bluetooth manager:

  • gnome-bluetooth will probably be included in the GNOME releases, making it the default for the GNOME/Desktop spin (see selection is end of July)
  • has no widgets for applications to use
  • doesn't integrate with NetworkManager cleanly (gnome-bluetooth has PAN integration, given the NetworkManager-applet plugin)
  • doesn't support Secure Simple Pairing
  • the setup and pairing doesn't follow the UI guidelines from the Bluetooth SIG
  • doesn't integrate with Geoclue

I think the first issue alone makes this a no-go. (BastienNocera)