Going to chime in here as this change absolutely sucks, and I despise it all, but it's here to stay.
The new 190 hyper skill's cool down being at a ludicrous SIX minutes is a complete and utter joke.
The cool down definitely needs to be addressed to either be halved to match most other class' major buffs for bossing, or have an alternative method to reduce the cool down.
Much like Hawk's Fly, it could come with an innate cool down reduction through attacking, that way the total up time on the skill is not a pitiful 16.7%.
Regardless, I have always loved the appeal of having actual varying skill builds for a class in a game that has long forgone that type of complexity ages ago, and it pains me greatly to have put in this much effort into this class only to have it ripped away in just a snap of a finger.
Probably won't be continuing this game at all if nothing is done about this dumpster fire tier of a change.