Unless someone presently uses a macro that fires multiple times with the absolute perfect delay figured into it, I'm sure the gain in attack speed from eliminating human error would outweigh the loss in attack speed from removing a few pieces of Snapshot equipment.
It's great to use the right tool for every situation. But, these jobs get
relatively few Snapshot pieces of greatly varying quality (and Velocity Shot for Ranger only, in the place of Haste and March and Embrava and Haste Samba and Hasso and...) in the place of the myriad melee options for delay reduction. I'm not convinced losing use of the worst of this stuff would be a big loss.