Oh it was definitely way more than a whiff. I've never seen a whiff on a pass play carry an OL 4-5 yards down the field.
To me it looked like he either 1) missed the play action tag and thought it was a run play; 2) had the wrong play entirely and thought Carr was going to boot out in that direction (this is the most generous interpretation as it looks like he's ghosting the backside of zone, then trying to hinge back to seal for the boot and is just unaware of how far he drifts); 3) doesn't know how to quick set.
Just look at the sets of the rest of the OL (including the TE next to him). It's all quick set/anchor. Meanwhile Fuaga is firing off when all he really needs to do is step and hinge.