User blog comment:HELO/Le-WHY-athan/@comment-4950455-20120908055305/@comment-3581090-20120908144616

"The real plot hole I found Leviathan to open up is in Shepard & Co's reaction to its revelations... "

Indeed, Zxjkl, that was something that had me raising my eyebrows as well. It's unavoidable, of course, given that the information is a retroactive exposition dump--for those of us who completed the original version of ME3 prior to the DLC, that is--so it is, as you pretty much said, easy enough to forgive.