I realized exactly the same than the original poster and that's why I decided to put 2 STR 1 VIt.... So it would be 20 STr and 10 VIT, it seems...

I have to say that until level 45 my warrior didn't have any kind of trouble yet, Can even do FATE alone and take some bosses in Ishgard because auto-healing in a lot of ways.

But, of course I'm just a noob and didn't test how much the game seems to change in level 50 with the super gear and all those thingies, so... Don't really know if that setting will be okay in 'endgame'.

Regards.