The article and video skip the interesting topic of cost and value.

It mentions at the end that tracking the sun is the best way to capture the sun, which is true, but as panel costs fall as a proportion of the system cost there is a general move to reduce other costs like complicated tracking and simply buy more panels with the money saved.

If you're a long way from tropical regions. Queensland, where I am, doesn't have the snow problem. That said, the ability to get more power from early or late sun has its place in the scheme of things, although a battery would change that equation as would your ability to shift load to suit your maximum available power.

"Dave] is using bifacial solar panels– panels that have cells on both sides. In his preferred orientation, one side faces South, while the other faces North. [Dave] is in the Northern Hemisphere, so those of you Down Under would have to do the opposite, pointing one face North and the other South"

um, yes, do the opposite.