NHTSA Complaint #11420364 — 2017 HYUNDAI ELANTRA GT

I have a 2017 Hyundai Elantra gt that currently has 108,000 miles and I already replaced the catalytic converter twice within 7 months. Last month, as I was driving on the freeway going home, I started hearing some knocking noise coming out of the engine. I decided to go to my house since I was close by. The noise was getting louder and louder, then as I was going down the hill on my way home, the engine seized and good lord I was going down hill , put it in neutral and it got me exactly in front of my house.I saw that there’s many recalls about Hyundai cars and engine especially the elantras from 2012 to 2016 but for some reason my 2017 elantra gt is not included in any of the recalls, even though it has the same engine. My car is currently at the Hyundai dealership for a diagnostic and they’re telling me that I need a new engine without a proper explanation of what exactly happened to the engine.I have been doing my maintenance on the car regularly and it doesn’t make sense to why the engine failed out of the blue.