I think there should be a difference between customizing your character, and having a defined role.

As it stands, all of the classes feel the same. Cross classing abilities is almost useless, except for a few that you can easily get before rank 20.

So after getting all the classes you want, it's easy to just pick one and stick with it.

Everyone calls it "customization" but really it turns into "all of the best abilities." Where is the pick and choose? I like having to pick one ability over another. Or one (defined)class over another. "Custom" implies making choices: giving up one trait for another. That isn't what we have in XIV. All of the DoW, save archer, play exactly the same way. So I don't know that you really can call it "customized" when there isn't anything to customize with.

Once the classes have defined roles, unique abilities (that can only be used in their class). That's when people will have to make tough choices about the character they want to play. As it stands now, it's a collection game. Who can get the most abilities to throw into a hodgepodge character. There is no form, or definition to our characters. At the end of the day, we're all just spamming the 1 key.