The FAQ, which has a statement about the Titan Mauler barbarian Archetype twice. The first being 'Jotungrip' which is used with the exact wording and has no issues... The second is- thus:
"Can a Medium titan mauler wield a Large two-handed weapon, such as a Large greatsword?
No. The "Inappropriately Sized Weapons" rule says (in summary) that a creature can't wield an inappropriately-sized weapon if the size difference would increase it one or more "steps" beyond "two-handed." None of the titan mauler's abilities say the character can break the "steps" part of the "Inappropriately Sized Weapons" rule, so the character still has to follow that rule."
Which is then completely contradicted by the RAW of their secondary ability which replaced the ever so useful 'Trap Sense'
"Massive Weapons (Ex)
At 3rd level, a titan mauler becomes skilled in the use of massive weapons looted from her titanic foes.
She can use --two-handed weapons meant for creatures one size category larger--, but the penalty for doing so is increased by 4--. However, the attack roll penalty for using weapons too large for her size is reduced by 1, and this reduction increases by 1 for every three levels beyond 3rd (to a minimum of 0).
This ability replaces trap sense."
Note the section 'highlighted' by the double hyphens?
This means that, in essence, they not only can, but they incorperate this into their archetype. I'm not saying they can use them one-handed; although this seems to have been meant to be the case with how eventually the weapon is 'appropriately sized' later on.
I am submitting this complaint; because it's painfully obvious that no one read the archetype/caught this the first time around. And I'd like to bring it to light.
Are you saying your RAW is not right? That a Barbarian gives up their ability to sense traps, for something that's basically *USELESS* because of the Inappropriately Sized Weapons Rule? If that's the case, it must be the same for the Titan Fighter; who *also* can use those weapons sized larger. Meaning that you have produced *TWO* archetypes that cannot be used due to your FAQ.