5) I've been critical of how the Federal Circuit applied Rosen. But I still think the basic requirement itself was good because it focused the inquiry on the design as a whole.
See: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=1926162
The problem in LKQ (as in many other cases) was that the Federal Circuit required too high a degree of visual similarity. See https://patentlyo.com/patent/2022/12/defense-rosen-references.html
9) In case this wasn't obvious from my previous writings: The way 103 was being applied to design patents (before yesterday) was bad.
Whether LKQ will make things better remains to be seen.