Kris tang is not weak. It is very sufficient to its purpose as a serious and deadly weapon, as in fact, and possibly at an earlier date than in Europe, an expression of what Burton called the Modern Sword; the sword for thrusting, cutting, and parrying. When you use a kris properly to fight no stress accrues across the tang, only along it. All cuts all thrusts all parries distribute the force along the tang when properly done. This is true in proper design and use of most swords worldwide, but kris is reall an epitome.
Not a weapon? What a weapon!!!!!!!!!!!!!!!!!