It then becomes a choice of what you want, +healing (both classes can heal) and +pie/intand such.
With some classes the uniqueness comes from the role you choose to play. Either way, at least now I'll know whether this person I am looking at is a healer or a nuker/enfeebler. When before, there was no way to tell.

Once again, aesthetical uniqueness is there.

Two, Two classes being able to wear 6 different colors of the same gear is not the same as Every class being able to wear all of the gear.
So? That didn't stop people from bitching about lack of class identity. Now the two classes (or roles) are clearly identified, and have unique equipment to support it.