Any BRD/MCH who does not have enough freedom of mobility in basic content with Gauss Barrel and Wanderer's Minuet active 100% of the time is overmoving.
Move to dodge; find a spot where you won't get the rest of the party hit with AoEs, and stand there til you have to dodge again.
Anything more is unnecessary outside of special mechanics with very specific movement requrements.
Clarification: I'm saying nothing about damage potential with, without, and with-and-without these abilities active; I'm addressing strictly any mobility-related arguments.