That is what it looks like to me, but from the website it appears that the founder may have had some influence of some kind from what might have been a spiritual guru of some kind who may have had a connection to Tibetan lamaism or something. The information is extremely vague, so I am just surmising, based on that. There is acknowledgment that he studied several martial arts, so just what the specifically Tibetan influence was, is anybodies guess.
Sometimes people find Tibetan spiritualism kind of exotic and sexy and "woo-woo" and stuff and it can get romanticized. Makes them feel like they have secret information that might yield hidden powers or something. So they like to play that up a bit and give it more weight than it deserves. So I'm thinking maybe he studied martial arts on some legitimate level, but also had some spiritual training that may have been brief and shallow or may have been deep, it's impossible to say for sure, but he made that spiritual aspect a central focus in "his" system, even tho it may not be really justified.
My ancestry is mostly German, some Polish, and a bit of Irish. If I tell everyone that I'm Irish (with a German last name) does that make sense? Sure, it's true, but there is a lot more to it than that and my Irish side is the least of my bloodline, even if I choose to feel a stronger connection to it than the German or Polish. So this Tibetan thing could be kinda like that.
On the other hand, Tibet, as part of china, is a huge place with a long history, and there are likely many unknown martial methods practiced in rural areas of China, that have never been seen outside of those areas. Is it possible that this guy trained in a little-known Tibetan method of combat? Sure, it's possible. But that video still looks a whole lot like karate to me, and nothing like any kind of Chinese method, Tibetan or otherwise.