The cleverness of "retina display" was that a single explanatory sentence told you everything you need to know - this phone has better resolution than your eyes can fully perceive.
"Pure Motion HD+" means nothing to me - is that better or worse than 'true HD'? (For that matter, was the original just plain 'HD' actually fake HD?)
I had the unfortunate experience of trying to gauge displays at Best Buy yesterday, where machines in the same category would variously have resolution designations from "1280x800" to "SXGA" to "True HD" to nothing whatsoever, depending on what they thought sounded best, and the cumulative effect was that I felt less aware of my purchase options looking at the actual machines than simply checking opinions on Newegg.
I can't imagine trying to navigate that process as a consumer with other priorities in life. And they wonder why Apple has such healthy profit margins in comparison...