I had a chance to take a better look at this. I don't know what to think of it. There is a short demo of "chuin, pow, khap", which are the three primary punches in Tibetan White Crane. I don't care much for how he does them, I think he's missing a lot, but that's what they are.
Then, there is a description of white crane "primary forms", including feeding, flying, calling, crane, etc. That sounds to me like Fukienese white crane. These are two very different systems, not connected or related, other than by coincidentally using the same name.
The history of Master Zu simply says that (among other things) he studied White Crane in 1963 under a "famous master", but it doesn't say who.
So I really don't know what he is doing, what this Toisan white crane is. Mebbe it's some personalized mix of elements of the Tibetan and Fukien methods? I don't think that's a good idea, they are just really different, different fundamentals and foundation work and I don't think it'll mix well. But that's my opinion.