The branding term is slightly different from ‘retinal display’. The term in use may have been ‘virtual retinal display’. Dropping the ell off retinal and changing it from an adjective to a noun maybe helped their trademark application, perhaps, but since the term wasn’t in widespread use and the term is not exactly the same, that starts to contradict the idea they were ‘hijacking’ it.
The fact that any company advertised it implies that it’s supposed to be good. Doesn’t matter that it was Apple, nor that it was a premium brand, when a company advertises, no company is ever suggesting anything other than it’s a good thing.