Sorry dude but you're wrong.

For mages:

Strength for wearing big ass armors too, there are belts with +2 str, I got lucky and found an amulet with +2int +1 str and loremaster. Otherwise it's a one point investment / 1 piece of gear investment. My mage is entirely optimised for doing magic as well as possible. Every slot where I can get int except weapons, I actually get int. Only strength spells she uses are helping hands/battering ram/encourage.

For dual wielders: With a 15 strength hybrid dual wielder with rage you have low hit chance, so you'd have to bless and then you get cursed etc or you rely heavily on the enemy being disabled. If you dual wield axes you have to get every bit of strength you can get, I find str gear quite rare though. The crippling blows are great, but not as good as lacerate+precise incision (yes I can use both because I got +2 speed from the dagger).

My own hybrid character went dagger axe for the backstab and access to rogue skills (which have much better scaling than warrior skills). Daggers drawn is basically flurry at -1 action point cost. Fast track, adrenaline, become air and cloak and dagger, offer incredible utility. Precise incision and lacerate average 1k damage at level 17 for me, normal attacks do 480 damage average. The trick is in the use of flurry and daggers drawn, when you backstab with that (target must be locked down) your axe portion of the damage crits too. If I optimise for strength now I end up with 23 str. That's a 1000 damage average crippling blow, where my hybrid as he is normally can do all this extra cool stuff like pump out 2k damage with 6 points that doesn't need chance to hit buff applies weakened and bleeding. Or 800 average backstabs, or 3200 critical flurry backstab, become air, self haste, adrenaline.

To each his or her own I guess.