I think this is the main reason why 3rd-person view is no thing in BB.
The game is not ment for it and large parts of the cast are not ment for it either - almost every character with a gun is played as “classic” 1st-person-shooter and the gameplay of these chars would change drastically, if it would not even destroy the gameplay of some chars completely.
Here a list of characters which are, in my opinion, made to be played in 1st-person-perspective:
Some of these are debatable, like Ernest or Montana. But Marquis in 3rd-person? The sniping-part would be no more. While a few of these characters might get away with a mild change in style, others would be needed to get changed beyond recognition.
And the general feeling would be largely different, as example take the difference between a modded MassEffect3 in 1st-person-mode and MassEffect in 3rd-person-mode.