No. The argument is that the administration is either lying or was not involved in discussions on the aftermath of the attack. Within 24-hours of the attack the CIA station chief for Libya asserted that this was a coordinated attack. The survivors of the raid described to State a coordinated attack using small-unit tactics - having control of the battlespace, creating a diversionary attack and then launching the main assault. The participants describe fleeing into a kill zone. Those aren't hallmarks of a mob attack.
Good thing the administration never made the claim that they knew this was only a mob attack.
I still don't see any evidence for lying or other misbehavior.
I see a bunch of spin and misinformation (including, for example, the thread title and claim made in the OP).
You seem to think that there was a single black-and-white question about the attack: either it was a completely unplanned spontaneous attack by people who were only protesting the film, that is, a "mob" (that just happened to bring along some serious firepower) or it was an attack planned by a known terrorist organization weeks to months in advance. In fact, there were a lot of possibilities in between those two extremes, and I don't believe anyone actually ever asserted the former.
I pointed out in another thread that words like "premeditated" or even "planned" don't mean "planned weeks to months in advance by a known terrorist organization". It could mean that unfriendlies (previously organized or not) on the very day of the protests saw an opportunity to take advantage of the diversion. It could even be that someone involved in the protest--a member of the "mob"-- went back home to get a few friends and weapons, cooked up a plan of attack, and then did the attack. (Yes, both of these scenarios would be described as premeditated or planned terrorist attacks, but would not include a scenario where a known terrorist organization planned the attack weeks or months in advance.)
[ETA: And, on a bit of a tangent, I think there's even another question. Was the protest of the film there even genuine? That is, did the terrorists get lucky and have this diversion just happen to coincide with the date of their long-planned attack, or might the protest even have been staged or drummed up? In other words, I think the question still remains as to how big an action this was. One possibility is that it was very large indeed and involved some of the other protests against the film across the Muslim world. Just pointing out that it's not a simple yes or no question that needs to be answered: was this terrorism or not? There was--and remains to be--a lot of questions in need of answers before we can be sure we have accounted for any and all people responsible for this act.]
When reporters asked questions to this administration regarding rumors that were leaking about the nature of the attack, the administration continued with the falshood.
What falsehood? I don't believe anyone ever contradicted the CIA statement that it was a coordinated attack. If so, please give me a quotation.
I believe the administration indicated that the investigation was ongoing and they could only offer speculation. Are you asserting that they should have said they were definitely sure of the specific nature of the attack before they were? (I reject your assertion that they were certain earlier. That doesn't line up with the facts.)
ETA: "The argument is that the administration is either lying or was not involved in discussions on the aftermath of the attack." What possible motive could the administration have for either lying or willfully staying out of intelligence discussion on the aftermath of the attack? Seems like a pretty pointless conspiracy!
ETA: And I think the Rose Garden speech (which is the one Romney chose to attack) was entirely appropriate. He pointed out that we will never buckle under to terrorist actions, and that we are resolved to get to the bottom of this attack and bring justice to those responsible. It would have been premature and irresponsible for him to go off half-cocked and start claiming certainty about who was responsible before we had good intel.
