Do MCH's oGCD abilities seem unresponsive to anyone else?

[Kitfox]

There was nothing clunky about developing good timing.

I vividly recall my raid MCH crying in A11S every time the boss went invulnerable with 2 seconds left on WF due to phase pushes or a target dying before the effect went off. There's no argument that a 20 second window is harder to fit into a fight than a 10 second one, whether you like it or not is up to preference I guess. I like being more flexible.