I think the higher stance is to report as a journalist and not exercise your own bias into when you choose to publish. And regardless, if you choose to delay it, your source will simply go to someone who won't. There's never an instance where it makes sense to delay, and it never makes sense to decline to write on reputable information, since it's not like wikileaks has a monopoly on journalism
I think this is a well-articulated representation of a specific (and much more common) journalistic ethos, but he quite explicitly holds a different ethos that is much more radical about transparency.
Plus, this answers the opposite of my question: I asked how GP comment supports his claim that Assange's is "selectively truthful", and you responded by saying that he's not selective enough!
GP could have made an argument like the one you made, disputing the very foundations of Assange's open-information philosophy. What piqued my curiosity was his novel claim of unprincipled selectivity, and I charitably wanted to avoid the assumption that his comment was simply word-salad covering up a politically-motivated dislike of WL.