Tie Rod failure

I was recently driving on a local side street at no more than 15 miles/hour. the weather was dry, there were no pot holes in the road. I suddenly heard asnap and my car veered to the right and hit a parked car. My 2012 MDX was towed into Acura where I was informed that I had a broken tie rod. This seems to be quite uncommon since the car is only 6 months old with 6000 miles and has neve been in a major collision. Even the resulting accident was a basically a fender bender. I am interested in how a tie rod can break and can it be a manufactirer’s defect. The car had it’s 5,000 mile service 2 weeks ago where they alledgedly checked the suspension.