CodeE
step on snek
McKenzie's list is just a consensus of professional scouts, who year in and year out are not high on guys on the smaller side. I wouldn't read too much into it.
Beauvillier puts up league leading numbers while being a faceoff guru and a 200ft. player. He's not afraid to get his nose dirty either which is what you need (especially if you are undersized).
I think it's just a matter of maturing for him, he is a very good player.
Finding very few flaws in both Barzal & Beau's games other than they aren't 6'4.