Extend Classes into full Jobs?

[Exstal]

Let's SE determine what is and isn't a waste of their time.

It's not up to SE. It's a matter of redundancy.

The game isn't only about "functionality". A NIN isn't a ROG and a ROG isn't a NIN.

If they do extend classes into full Jobs, what makes you think they won't add Job specific abilities to "differentiate" the 2 jobs?

When 95% of your base class is using the exact same skills and combos, the only way to make them different is to have a different role for the second job. So unless you want Thief healer/tank for Rogue, probably not going to happen.

Also, again, so what if they are similar mechanics-wise?

Redundancy.

If you really want to "not waste time", might as well just have "fighter", "thief", "priest" and "wizard", then call it a day.

A wonderful strawman.