I think one of the biggest issues might be is speed is by far the strongest stat in most things. If you can up attack speed it's usually either so small it's negligible or OP broken. They added GL4 like we wanted but removed Sks from most endgame gear. I mean it's basically a slap in the face and straight nerf to Mnk. You get GL4 but your overall Sks is lower making any time not in GL4 weaker.

If they let us have the proper gear, with how stats increase with new level caps, plus GL4, and good melds, Mnk could get to insane heights of speed. Which IS what we want, but they have no idea how to balance that, especially with Leaden fist now. Imagine doing LF/BS crit every 5 seconds, or with PB getting 3-4 of those off. That would be fun but again, they don't know how to balance this. So Mnk is stuck in this limbo.

How do you balance it? You give players what they want. You allow Mnk at cap to reach speeds of 1.6 gcd or less. What's the balance? You would have to heavily nerf potency which again would leave Mnk terrible in low play. If they try to let Mnk be strong and fast with the counter being a need for high focus to maximize dps and not lose stacks, then it becomes one of the hardest dps and alienates people. What's our future? How can we improve? Stats will keep getting higher, but Sks can't go too high, another reason our Sks may have been nerfed.

Mnk is the class built around speed, and speed is strong and hard to balance. I really don't know what they can do but I hope they figure it out. I love Mnk, but I hate the treatment it has gotten past couple years.