Strike of the Giants Prerequisite Question

[Psyren]

I interpreted it as having proficiency with all martial weapons, I.E. a fighter, a barbarian, etc.

I actually disagree with this - I think the intent was for any martial weapon to qualify. Requiring all of them doesn't just eliminate rogues, it eliminates monks as well, despite the damage bonuses working with their monk unarmed strikes (because US counts as a "melee weapon attack.")

Enforcing this ban means the only way for monks to qualify is with the foundling background - while certainly flavorful, it doesn't seem fair or intended to force them down this singular path when other martials don't have to.