I see the opposite, the majority of new players I have met are happy they can skip to the meat of the game, looking forward to every update and happy they are able to play and participate with the majority of other players rather than being left out of the loop. I personally see why, so long as you have assistance with where to go, you can get to your 90s in a couple of weeks, where most of the game really is now, along with most of the players.
Back when I started I had a LS I joined where a good 75% or more was in endgame, while I had no idea what was going on, I was a lowly level 20~30 RDM. I felt left out, and disconnected from them, even the xp parties I joined often had the same feel, people would talk of events like Limbus or Dyna, which I had never experienced. Now days people don't have that feel, the only content like that are things like Legion which few people do. I like this change as it seems like the game is easier to get into, and understand, as well leaving people to feel more informed, instead of wondering what an event was, and having nothing to compare it to from their xp party experience.
Without the proper help I admit, no new player will be able to make it in this game, but I believe that is one of the problems that they are trying to fix. Currently if you start new you have no idea what GoV, Abyssea, FoV, or anything of the sort is, or where to find it. You need someone else to tell you how to reach Gusgen, and then need people there to teach you to use books, then you can start actually doing something. Before that, players will easily be more lost and confused than ever before, and that I can definitely agree with. But as I said, I think thats something they are trying to fix, and if they do fix it, then this will be awesome. After you pass that part is when you realize how the speed helps new players rather than hurting them as many claim it does.
I think if they make it so you can level easier at lower levels without needing higher levels to guide you through it then it should be a better overall experience. With that, they could pull in new players who actually want to stay, but as it is I admit few players come right now, and fewer stay due to the rough start. It does make sense the game could die from lack of new players, but if they fix the problems with new players being left clueless then they could potentially have more players coming in than in a long time just because of the new expansion as well as the ability to draw players who are right now looking for something to hold over for 14 to be re-released.