Honestly, what I believe he does or what is happening with the model, is that it is readjusting doomfist's size and ratio relative to what the actually character's is. Look at reins
Leonidas Tube maybe he had the same idea. i mean i thought of "Boi" immediately when i first saw that too and that's why im here cause i went to check if someone had commented "Boi" or not.
The only thing bothering me the most is his head. Is he okay? I mean, his background says he's a nigerian talon member, not an alien from another galaxy.