If the player knows how to use that effectively then he has an advantage over most defencemen.
If you have a bottom pairing dman who can effectively smother the opposition and eliminate scoring chances then thats a very valuable piece.
Now I am not advocating for Vinny to be given a spot on that basis but I understand the willingness to see if he can maximize his potential.
Right now needs to work leg strengths and turns everyday. Needs to be able to accelerate faster. Worry about exact mechanics on closing gap later.
He is getting blown by around the defensive blue line.
Because of his strengths they likely give him every opportunity to work on this. It might take some time but these are solvable deficiences. Learning to handle the puck better and having a great first transition pass not so much. Desi will never have top 4 upside.