I'd suggest such questions as you're posting belong more appropriately in a google search.
Having read through what I see there, it is just another 'Soke' system somebody personally threw together. I challenge 25 year students becoming 'Soke' simply because I'm a 35 years student who has seen too much.
I have yet to see any evidence, outside of the Matayoshi lineage Hakutsuru training and a few other Japanese/Okinwawan instructors, there is any martial value to any of the other Hakutsuru running around.
Lots of talk, but no evidence.
It is probable that this group hasn't been around too long and that would make it hard to prove it's worth.
Good luck on your search.
bushi no te isshinryu
offering free instruction for 30 years