right rear wheel lug studs were brittle and sheared off

What is your question?

Driving 70 miles down the interstate, with no warning other than a sudden pop, the right wheel became disabled, causing all kinds of damage to the car. This is a 2009 Jeep Wrangler and yes it is old, but we keep it well-maintained. We had just completed a 5000-mile journey and had it inspected by the Jeep dealership prior. They found no issues. Upon inspection after the incident, the only information I can get from the Jeep dealership is "right rear lug studs were brittle and sheared off which then created a domino effect on other parts failing/breaking". Should I be concerned with the other 3 tires? I asked and got the answer the mechanic crawled under the car and looked around. Also I have a powertrain warranty, would this happen to be covered?

How long has your 2009 Jeep Wrangler had this problem?

Sudden