Here's why it matters. Most NFL linemen range between 6'3 and 6'6. Using myself as reference, from the top of my head to shoulders is 11 inches. These guys have bigger shoulders than me and pads so adding back 4 isnt unrealistic. So their shoulder level would average 5'8 to 5'11.
My eyes on the other hand are 4.5" from the top of my head. For Bryce, even at 5'10, that means his vision level is 5'5.5" but we can round up to 5'6".
That's why those 2 inches matter. They're literally the difference between seeing over the shortest lineman or not at all. And when Bryce is standing next to Kyler Murray who is also 5'10", they don't look the same height. Bryce looks shorter.
So when people like me bitch about physical limitations, he's staring 5 of them over 2 feet wide in the shoulders every play, and that doesnt even account for defensive linemen.