He had the initial block I agree...but then his man got outside his frame and he had his hands exposed on the shoulder pads of the lineman outside his frame.
It's s hold. Could it have been overlooked? Well, you could say that about 1/2 the holds.
If you blame GRobbers reputation as refs looking out for him...well...the earned it.
There is one guarantee...this bust will get called for a hold calling back a big play. Anyone who needs help as much as he does and is a #2 overall pick is a major bust. He should be as good or better than a great tackle called Tyron Smith.