Like many things in this game, it's highly sensitive to latency, which is highly variable with FFXIV servers and especially tends to spike in the US evenings.
But this instance in particular makes it horrible. With the forced march mechanic, I've been 25~30% into the next quadrant, when the last quadrant explodes and still hits me. Usually not, but sometimes it does. :/
Yay for SE's networking...
https://media.giphy.com/media/1fiJvz...eujr/giphy.gif
The problem is inconsistency. This can work 90% of the time, but occasionally you'll get screwed because of the game's network issues.