How is BLM in new expansion?

[Aikaal]

You're trivializing movement's detriment for melee; maybe it's because you play NIN. Movement and mechanics can still greatly effect Melee DPS, especially MNK and DRG because of how these classes work. Missing a positional, while not the same as interrupting a cast, is still lost DPS. Losing GL or BotD is a major DPS loss.

The difference is a 1200 DPS parse on a dummy vs. a 800-870 parse on an actual boss. This can get better with experience on a particular fight, but you'll never get those dummy parses in practice due to movement and mechanics.

I agree, movements means it's nearly impossible to hit 100% positional for melee. Even more true during progression.