I agree with some point's and also understand you don't NEED DL for Ifrit or Garuda but it damn well helps a lot to have it.
And for Titan people with normal AF should not even queue because they waste everyone's time. It is not only about the dps or healing output, it is the extra VIT which makes a huge difference. A healer with 2.5k health or 3.2k is a huge difference and can and will save your life when something goes wrong.
Or for DD's 3.2k to 3.7k (At least for BRD's). With normal AF and white accessories you're just a burden to your team (at Titan).