The rider into the video is putting some really ham handed inputs into the motorcycle. It’s not a wobble, bikes don’t “wobble” at lean, it’s a culmination of looking at the front wheel, forgetting where they are in the turn, surprising themselves about how close they are to the line, scaring themselves about the cliff edge, while being shocked about what the bike is doing. The person on the bike has stopped riding, the bike was riding them at that point. It’s a good example of someone way out of their depth on a capable motorcycle.