the highlights are blown out
Who cares? First, we were talking sharpness, not retaining of highlights. Second, I was interested to expose face correctly to quickly check the lens, and in conditions shot was taken in (strong sun behind the person while he is in shade) any other camera would have blown highlights too.
this is useless without the raw files.
Check out settings used in JPEG, remember this was wide open, and then realize if I have shot this at F4 to 5.6 and I was in mood to give you RAW files they would have been so sharp after processing that you would have to sign the waiver in case you cut yourself while opening them.