I have never blown a tubeless tire off a rim, so I can't say for certain what would happen. I can tell you from experience that the most likely sequence of events for your bent rim was this:

Hitting the deep rut compressed the tire all the way to the rim, allowing the rim to contact the ground and bend. This also could have pinch flatted the tire(cut the tire by pinching it between the rim and a hard surface) or just unseated the bead and allowed the air to escape from the tire.

Most of my rims have several bends that occurred in a similar fashion. Its the price you pay for trying to find just the right air pressure to absorb bumps without smashing rims. I am usually able to straighten the edge of the rim with an adjustable wrench. It will never look like new, but the tire seats fine.