It’s easy to confuse until you see the DB lined up over the slot receiver. The linemen aren’t spaced the way a 46 would be, but.. I suspect you can get a 46 effect out of a 34 front by pinching the ends into the offensive guards.
I spent a lot of time looking at other teams and wasting that time. No fronts of interest to speak of. Now, Pittsburgh tends to show a lot of 34 looks, but there is so much motion in their linebackers that they tend to keep someone like me engaged. For example, what’s happening here?
Some things to note: the front is shifted to the weak side of the formation. LDE is over the guard, the NT appears to be in the “A” gap, and the RDE is outside the LT. The result was that Matt Ryan ended up being intercepted by Troy Polamalu.