Bards - Help me understand

[SayuriHime]

As a healer, I am at a vantage point to see how different dps approach their roles. I have to watch them as a part of my job. Watch their hp and watch for things I might can esuna. Being in this position, I can see what buffs they are using and which they are not. I also can compare how fast a dungeon progresses with different dps.

I've noticed some bards not using Wanderer's Minuet at all in an expert dungeons. I've also noticed these bards are not moving at all while shooting. I understand the argument against using Wanderer's Minuet is it restricts movement. From what I understand, it is a damage increase and unlocks abilities that cannot be accessed outside of Wanderer's Minuet.

When paired with these Bards, the dungeons go much slower.

My question is, if they are not going to be moving, why on earth are they not using something that is a damage increase? I feel like I am missing something, please help me understand.

Side Note: I have been paired with some amazing Bards using their full toolkit and seen how fast we can blast through the dungeon.