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What year is it? Is it not under warranty? If the engine cranked, it wasn’t seized. Maybe something got lost in translation. A motor that doesn’t create compression will crank and not start, but there are a ton of other things that could keep it from starting. No spark, no fuel, etc. At minimum a compression check needs to be done to know for sure. I haven’t listened to your video, but if the knocking increases and decreases with RPM, then it’s rod knock… unless it’s something up top on the valvetrain.
Also, keep in mind that these engines have water based intercooler/heat exchangers, so if you pop a leak in that, you can suck in coolant and cause similar issues to hydrolocking, but that rare because I/C core leaks, it’s usually minor and leads to rough running or misfires before a much bigger failure.
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