Steven, in a way I have to agree with you, based on these Web-sized pics. Not having owned a N lens, and not having access to a high-rez version makes this a very limited statement, however. But even Wayne's pic from his 50 f:1.4, which look magnificent from a colour point of view, probably even better than my beloved ZE 50's, lack the "pop" you mention. As I don't own N lenses, I don't want to hijack this thread with non-N pics to see if, as I believe, more "pop" can be achieved from other Zeiss lenses without special PP and even in Web format, but it might be interesting.
It would go some way towards the Zeiss-50-shootout we have been talking about.