Force Recon, you bet they would have made a difference. Rangers and Delta as well. All are some tough Special Forces and Special Operations go to guys.
But as it was at the Stumps and as a Marine unit, it would only make sense to add in Force Recon.
And ignoring the majority of movie and other BS, that is really all that most Special Operations forces do. Act as recon, and liaison and train local forces. In a case like this, operating forward of the main element to provide intelligence so they would know where the "enemy" was, and what they were up to.
And I also mostly laugh, because most exercises actually already have at the start the "plan" for who will win and lose. It's not like a boxing match, more like Professional Wrestling. And both sides take turns on the offense and defense. And both sides are expected to "win" some engagements, and "lose" others. And the loses are mostly "administrative", with both sides reporting when they "shot", and then people comparing which shot first and determining who hit first.
I have taken part in these kinds of exercises many times. Every summer at Camp Lejeune we took part in a large one, where we were the "bad guys" for the Reservists to attack during their two week summer activation. And we always expected to lose, as they had by far the best assets and we were only operating as light infantry. Most exercises at Stumps are the same way. With the "local forces" being the enemy set up to be defeated, often recreating past battles where the attacker already knows the winning "or losing" strategy used.
Case in point, in a major Air Defense exercise in 2008 in Yuma, my entire Battalion was killed by a HIND. We even heard about the pilot crowing about it on the radio as he was able to slip in and destroy every single Battery (24 launchers in total). However, an hour later he was told he had killed none, he had already been "destroyed" by a STINGER unit he passed over 5 miles before he got there. Most kills in such an exercise are just like that, looking at log sheets of when somebody reported making the first shot, and removing any targets "destroyed" by that vehicle or unit afterwards.
As I said, I read many articles and almost all just repeated the one before. No details, just making the same claims over and over again. Hence, I pretty much rejected it. It was not "news", it was not even interesting reading from a military point of view. And as most in here have shown, blown all out of proportion for political purposes. Hell, I bet 90% reacting as such did not even know it was the 3rd AAV, what equipment they use, or their organization. Or that they lost a quarter of their strength earlier this year.