My theory is that that's exactly what the Exia is made for; charge into full visual range and distract all enemies on the field with the high visibility of its colour scheme, and keeping them preoccupied with its high-showmanship-value melee capability
so that they'll be too busy to scope out Dyname's position from the trajectory of its sniper shots. If you've noticed, Exia and Dynames always take on
complex missions as a pair; to a lesser extent, it's the same pairwork with Kyrios and Virtue.
Meh. *shrug*
When it comes to Gundam, one typically switches off the logic circuits in the brain while viewing.
