Quoted from CrazyLevi:

LMAO I've never seen this full length version before...where Mueller mutters "stop, stop" and waves off the camera man.
It's always a good time to remind everybody how full of shit that gasbag was and how horrible and ridiculous Deep Root's "innovations" were.
It also stands as a testament as to why pinball manufacturers don't need to spend time and money "fixing" problems that don't exist. Like the "issue" of people removing their lockdown bars and then walking away without removing the glass.

Quoted from John-Floyd:

The first thing I was told when buying my first machine was to always have the door shut when dealing with the glass and always take the balls out before propping up the playfield.

Quoted from TreyBo69:

Honestly, now that you say that I'm not sure. Most people assumed early celebrating, but him trying to emphasize how high Robert needs to be lifting makes a lot of sense too. Especially when he is raising his arms when Robert is lifting the playfield up