I just intended to highlight their logistics problem, which caused these developments.
Regardless of whether one can believe the photos/videos, I skimmed through that video which gives what seems to be good reporting on where the various actions are taking place on the map.
Lots of various fronts of attacks - ranging from small discrete zones (port cities) to scattered lines. Would seem to be hard to defend against wondering where one should concentrate the defense. Even harder to supply the offensive forces.