Second part of the video shows the landing from the collapsed side
https://m.youtube.com/watch?v=ILdwSl...ature=youtu.be
It looks like the gear collapses at touchdown (which appears to be relatively smooth) and the spoilers restow almost immediately, either by pilot action or failed air-ground sensor of the collapsed gear. It also appears the pilots pick the right wing up until the airplane slows down and then it drops again.
Rumors are the the collapsed gear was recently overhauled and fitted less than 3 weeks ago...