Which mount was it that bent, the ones for the end links on the TTB or the ones on the frame?
Overly loose bolts, overly tight bolts, or movement that's outside of the range of the sway bar will bend them. The suspension and the sway bar is only designed for a few inches of up/down motion, if you hit something and the suspension goes sideways or twists the bar too much, it'll bend the mounting brackets. If the bolts are too tight, there isn't enough play in the components and it'll bind and bend. If the bolts are too loose things will move around in ways they aren't supposed to.