People, people, you need to understand about the warriors of *darkness*
The warrior's of darkness were the people in the trailer of 1.0, and yes they were all the same people, The Miqo'te was the one wanting to get gil at any cost at the table(which became the bard), the Lala white mage was the derplander future companion seen in the echo, the Elezen was the one at the table arguing with the miqo'te that becomes the black mage, and the Roegadyn marauder that the derplander saw with the echo as a future companion as well that laters down the road becomes a paladin. Don't know what happened to the Elezen gladiator girl in the echo(may have died). AT the trailer intro of 2.0 A realm reborn, you see them all fighting in the field but remember, doing that time(of the whole 1.0) there were "MORE" then one warrior of light and only VERY few that were "champions" that get the full power of hydaelyn which was just told to us by Krile. The player didn't go the same route as the derplander went in 1.0 so its understandable that nobody knew who they were.
This shows that the "Darklander" and his crew were another band of light warriors gone dark doing the new realm reborn eorzea time, they could have been fighting them long before our time raise in power cause it was also told that the ascians were stirring trouble AFTER the calamity. Remember, in the video the 5 got ported out of the battle, not just them but many others by louisoix in the battle he could save but they all did not land at the same time frame, many of them landed years/months apart from one other. The Darklander crew just happen to land together and ride off into the sunset looking for new advanture way before us(the 1.0 players) got ported in.
You guys ready to have your mind blown?
ARE YOU READY?
IF you were a 1.0 player, you were *ALONE* and walked to your *city* you listed and were on your road to become the next "champion" of the light.
If you were a new player, aka the 2.0 player, you are not a vet from the battle, instead you are some nobody on his road to glory/fame or whatever you chosen only to later down the road to become the next champion of light and having no idea you had these powers "the echo" and so on in the story and was told this.
Everything makes sense once you start doing this.
In case someone says "Well the scions don't know who you were if you were blah blah blah after helping them in 1.0" that my friend is a plothole because something they didn't have time to add in due to time.