I watched the first 2.5 minutes of that video. Nothing he said really relates to the topic at hand.
I stopped watching when he said the following:
"You're not going to get up to full speed in 5 steps, I hope, or the weight room should probably be something you should focus on more than anything else."
That seems patently false to me. Given that the weight room work helps those first five steps the most, if you could get to full speed in just 5 steps that means your acceleration is incredible and the weight room should probably be the last thing on your list.