When he marks a column as a "0" he immediately erases that column. I was playing where you had to finish every column in that row before you erased the "0" resultant columns.I haven't watched the video, but he's right: You don't wait until the whole grid is full. One might also wonder if you can clear a column immediately after placing the first of two dice, or only once both have been placed. I don't remember the official ruling anymore, but I've been playing the first (easiest) way.
Also I read some things in the forum, but this wasn't clear to me: I got lucky and rolled a natural 0 when I was searching for that Lead for my final link. I had already found the Construct, but should I have gained 5 energy for the God's Hand because of the "0" search result?You only get the 5 energy when you find the Construct, not on later results. 5 happens to be the maximum you can get when activating a Construct by hand (but not using the Focus Charm): Fleeting Visions, and 6-1, 6-1, 6-1, 6-1, makes 2+2+2+2-3=5.