Yes, we know that we don't have a helmet or eye protection on. Now that we have that out of the way this quick video is designed for a few reasons.
1. Communication~ When crews work so long together they build their own communication. Just as long as everyone is on the same page we are all good.
2. Gapping~ In this video you can see Drew Gragus forcing down and not up. To him this feels more comfortable. You can force up or down both ways are correct.
3. Weak frame~ Even with the frame bending the soild work of traditional force entry worked great on a soft, weak door frame.