The problem is, the original 1.0 intros were designed in that way as part of a greater narrative arc that was never resolved (the irony is the player actually didn't realize at the start that everything they saw at that point was just a memory they were viewing through the Echo - all those scenes were from events that had happened over a decade earlier).
Because the new storyline has scrapped all that, hence the more mundane intro of the player having a dream of the Mothercrystal and an Ascian, and then being woken up on the ferry/chocobo carriage by the merchant who then waxes lyrical about the current state of Eorzea and adventuring in general.
Because ARR is designed with new players in mind, especially those who have never played a MMO or FF game before, Yoshi wanted to have the opening ease the player into the game and storyline rather than chuck a heap of enigmatic, obscure cutscenes at the player and overwhelm them. Horses for courses and all that. (And after all, the player does end up seeing some of the original openings later on in ARR when
they first encounter the Archon for their starting city, they experience the same vision of the starshower from 1.0 where the player first receives the Echo, right down to the lines from Answers, although it's rendered with in game graphics rather than a pre rendered FMV scene like 1.0 had).