Well, that wasn't entirely the point. Of course you still want to "get your character right" but in this theorycraft scenario "getting your character right" is different for every job and doesn't amount to "gear for crit and hit sks/sps cap if you have one, and be able to not miss". It would allow you to play to the job's strengths. i.e.

"How imortant are AAs to my job?"
"Does my job have buffs that it is important to fit a certain number of skills into?"
"What percentage of my job's DPS is off-GCDs?"
"How DoT-focused is my job?"

If they changed/added stats in certain ways we might get to ask some of these questions while gearing instead of only asking "how high can I get my crit?"