The problem with it being "something" that was "broken" on Monk is more that this problem has been building literally since 2.0, alongside of MULTIPLE other problems with the job's kit, coupled with SE's growing tendency to break up boss fights with extensive cutscenes that also affected other buffs and mechanics on other jobs negatively.

They had multiple opportunities to do something about it, and did NOTHING to change how GL works at any point in time until Shadowbringers, and the best they could come up with was just to remove it. They could have offered some means to ramp it down incrementally, so that missing a refresh didn't take the whole dang thing away. They could have offered us something that made it REWARDING to maintain over an extended period of time, similar to Enochian (and it wouldn't even be the first time they've taken design cues from other jobs). They could have made it another resource that interacted with our kit beyond the self-buff to our speed and power. They could made Anatman a full GL refresh on a long cooldown (but allow us to shorten that cooldown for successful combo-initiated refreshes of GL). People have been throwing around suggestions on how to change GL for the better for years, and none of it reached SE, ever??? None of those ideas are my own, they probably aren't even close to the best ideas people have thrown around for it!

They didn't do anything but give up, on a job and a mechanic they've continually screwed up with every expansion, as a means to appease a shrinking number of Monk players that have been begging that something, anything be done, all in service to another set of players who didn't even like playing Monk in the first place, in raids or dungeons. It's frustrating to me that this is supposed to be considered a "good start" when they turned Anatman into a Twin Snakes refresh, of all the bloody insipid decisions they could have possibly made! This is supposed to be a "good start" when once again we're sitting in one elemental fist forever and we don't even have a legitimate reason to switch off of it. Even the start of ShB managed to half-heartedly offer Monk a reason to switch from Fire to Wind!

But hey, at least we can use our former capstone skill in the middle of an awkward burst phase.

If Black Mage players were more vocal about losing Enochian to cutscenes/boss disengages, SE would have shut the servers down to hotfix it in 24 hours or less. Meanwhile, they've left Monk to languish for years simply because it could still do damage in spite of their best efforts to clamp down on what harder working and better players than myself have tried to extract out of this confused mess of a kit, and I expect nothing better from them at this point. Fortunately, there's other jobs to play, and I do play them, but everything surrounding how Monk has been "fixed" from Heavensward to Stormblood and now Shadowbringers really ticks me off.