Again, it's all a matter of weights.
You still focus too much on the fact that a lv20 Conjurer would take most of his INT from his own physical stats.
From my point of view:
Lv20 character 5 INT + Conjurer Job modifers (like FF11) 10 INT + Conjurer gear + 30 INT = 45 INT
You class change into a Pugilist, you get like +40 STR from gear/class mod. so the fact you only have 3 STR as base stat is next to trivial.
I believe the stats allocation you are free to distribute won't be worth more than 10% of your total stats.
Should they represent more than 50% of your total stats value, this would lower the importance of gear and, more, give too much weight to the "nolifer attribute" of each player, since you'd be top ace on EVERY class given you can play 24/7.
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