Current KMST Skill Delays and Ranges?

From the videos that I've seen, Charge Blow's casting speed itself did not change one bit, or at least it does not seem to be any faster than it is currently.
I believe these delay values are for animations, and not the actual cast delays, and actual cast delays can be shorter or longer than animation delays.

That could be the case since Rush's delay value is 600ms which is the spammable version of it (no monsters around) where a delay occurs when colliding with a monster (1200ms I believe). Charged Blow just seems to be an odd skill to have such an effect. Back to an earlier quest, why does the charges have a range? Originally intended for party buffs? Future possibility?