Huh. Not as many MNKs as I expected here that are eager to keep their GL uptime.

As a BLM, I don't really often use Ley Lines for trash unless there's something significant, and, don't really have any other buffs to truly worry about. Cast time, AF/UI stacks? No big deal. Aetherial Manipulation to the tank, maybe Sprint if you want, you can get yourself in range/position to get a spell off; Thunder IV is a good choice during pack movement, good chance of procs to use while you're still running. Triplecast can keep you flinging damage out on the run. And all the while Foul is ticking up, never a bad thing. If you're running late game 76+ dungeons, you're even able to keep UI up indefinitely anyway.

Don't get me wrong, the behavior is still mildly frustrating, probably shouldn't be encouraged. But, BLM at least isn't suffering all that much from it. Resetting your rotation? Eh, you'd have to do that anyway from pack to pack.