Here's the wall in question, apparently (I can't be sure that's correct, of course, link taken from another comment):

https://www.google.com/maps/@34.9756691,126.381087,3a,53.5y,...

Does it look like it can stop a plane to you? No freaking wall would do that.

Most likely it was the uneven terrain that caused the front of the plane to hit a mound and caused the rest to collapse behind it.

https://www.youtube.com/watch?v=1vjMRCG7Mjg

it is basically a crime endangering public safety.