Nope not kidding at all. Luke Donald draws 99% of his golf shots - he has to because of his slight size. If you think he swings left, take another look at 42 and 43 seconds into the video clip. Look at the "shaft exit" above the right shoulder at 47 seconds into the clip. That sure isn't a fade pattern.
I'm no expert, and I have no stake in Luke's swing. I'm also not making any claims about his swing in general, just about this video posted here. I'll shut up after this.
But, as you suggested, I took another look at 42 and 43 seconds, and it looks to me like pure "follow the yellow brick road" NHA, i.e. SWING LEFT. He releases hard, but that's not what the SD pattern is about.
Luke Donald might draw the ball most of the time. But the swing he makes in this particular video is NOT the soft draw pattern as Brian teaches it in his commercial video SD 1.0.
The backswing is ALL wrong, with pop-out, a flat left wrist, and a bit laid off. And after impact he swings left and comes to a finish that looks nothing like the "one more point" of soft draw.
I wonder what a Manzellla instructor who teaches SD would say. If they or Brian says that the Luke's swing here looks like SD then I'll admit I'm wrong (apologize to vgcapron), and also admit that I have understood NOTHING about the pattern. But I just don't see it, and focusing on 42 and 43 seconds just re-confirms that I don't see it.