Alright dude . . . here's what you need to watch a side by side . . .
You can skip to about the 8 minute mark and then you'll see the difference for yourself what I'm talking about . . .
High clubhead vs. sweepy clubhead . . . AND the dude is hitting a shot outta the rough . . .
First, Both Swings are awesome. Thank you for sharing them.
Second, The commentator shouldn't be talking about something he utterly knows nothing about.
Third, What you think you are seeing is not what they are doing.
Tiger's Hip Center is 2" ahead of his ball location and his Head is dead on the Ball at impact.
Zach's Hip center is dead on the Ball at Impact Location and his head is 2" behind the Ball.
Though Zach moved to his left side perfectly, Tiger moves slightly more.
Zach has a very small #3 Accumulator angle. Tiger's is greater. Tiger can do that because he has higher hand speed. It looks like zach is sweeping compared to Tiger. But, he's not. For you, it's just not having enough information availble to analyze the comparison. Now you do. However, you're ten times more knowlegable than that commentator.
They both have a Straight-Line Delivery Path. Tiger's is slightly more vertical. Zach has textbook form. So does Tiger. TGM Textbook (in this video anyway).