On-the-fly combat swapping between camera modes may work but it’s becoming difficult to see the benefit in using action camera at all.
While it’s active:
We can’t use ground-targeted abilities behind us or to the side without doing some camera acrobatics.
We can’t attack one enemy while our crosshair is closer to another.
Strafe-kiting is more difficult. Even once we’ve locked onto a target, autoattack stops if our crosshair remains off the enemy for more than a moment.
When kiting, we continue to backpedal for a short time after a skill completes. We’re better off manually turning and running forward as we would in the standard camera mode.
It’s really a shame. This is how I would like to play but if I’m at a competitive disadvantage to other players for it then I can’t justify making the switch.