The SHARP scheme has only been out since June this year
In a perfect world this would have been out since the late 50s (globally). I like the idea, sorta like consumer reports for helmets, you don't always get what you pay for. (I would also like to see user friendliness in regards to glasses, earings, long hair,beards and glasses: helmet comfort, balance, ability to keep cool, ability to keep dry in rain, ventilation, wind drag w/ and w/o a wind shield as well as wind noise w/ & w/o shield also rated) There are already unbias crash test results and safety ratings for cars, but not MC safety gear.
I would also like to see helmets made in better fitting sizes. (you can buy hats,shoes & gloves in actual sizes like 7-3/8 or 11.5 but helmets only come in XS,S,M,L,XL: you can buy boots & shoes in AAAA through EEEE width, but unlike shoes all helmets are a standard width in same brand) They only deal with head size and not shape.
storysunfolding it is impossible to tell on the internet about re-branding, except Kawasaki and Triumph which have a disclosure statement on their site.
And as to brands I have found several no name helmets for sale on Ebay. Also some identical helmets may carry a different brand name in NA, EU and yet another name in OZ & NZ
Also after I have seen them I believe everyone should be required to wear the HOT PINK party helmet!