This one is going for a more upscale market than the first one you posted. Whereas the other guy would put off educated people with his misspellings and *really* ludicrous claims, I think this sort is actually more dangerous as they have more money. They appeal to middle class people who may be just as ignorant of (or callously racist about) the actual cultures, yet more influential in the world. Sort of a hippie vs yuppie thing.
Again, this looks to be the usual Harnerite crap done at a few Irish locations (when they get in their BMWs and leave the city or suburbs), with a bit of knotwork pasted onto a stolen framework. The real kicker is the connection to the ReBirthing/Breathwork people, who are usually quite cultish and capitalist, very involved in the whole "prosperity consciousness" ripoffs, which often involve pyramid schemes and convincing people that selfishness is spiritual.
I look through this site and, aside from some pretty pictures of some Old Irish art, I see nothing Celtic about it, either. It's all about sitting in rooms in the city or suburbs, and taking trips to "exotic" locations, whether by airplane or in their minds.