NHTSA Complaint #11458696 — 2018 KIA SOUL

I bought my 2018 Kia Soul from Fredy Kia Dealership in Houston, TX and after 3 years and 124K miles the engine failed. It started with the check light for 'engine knock sensor' code 1326. I had the sensor replaced but the mechanics mentioned that my oil was extremally low and needed oil. I just had my oil replaced by Archer Kia dealership 2 month prior how could that be? So they replace the oil and the sensor. I drove it for 4 hours and the check engine light came on again this time there is a knocking sound. The mechanics say its a blown piston and now the engine has to be replaced. This is incredibly sad and frustrating to know that these cars' engine fail after 100K and have to replace the engine. After researching on on this site and https://www.aboutautomobile.com/, this engine problem has been going on since 2012. How can this be? Why isn't Kia doing something to cover and fix this issue?