Flow of time

[Alenore]

My impression was that Vanguard was acting as a sort of "airlock" between the two realities, but once we burst it open, the area within the dome became fully part of the Source and subject to an equal flow of time. This is also likely what allows linkpearl communication across the barrier.

I don't see why it's when we went into Vanguard, and not when they obviously opened it to let troops and units go through.
We have no mention of Zoraal Ja having come back to a significantly different time, nor of any time effect between any command center they have (since they're able to relay infos to Zoraal Ja during the second attack) and the units/airships in Tural.

[MikkoAkure]

I don't see why it's when we went into Vanguard, and not when they obviously opened it to let troops and units go through.
We have no mention of Zoraal Ja having come back to a significantly different time, nor of any time effect between any command center they have (since they're able to relay infos to Zoraal Ja during the second attack) and the units/airships in Tural.

Yeah, I was under the impression through the dialogue that Zoraal Ja breaching the dome with Vanguard and sending his force outside the dome is what made the time on both sides sync up.

They said that they had to puncture the barrier in order for them to send their forces out and it makes no sense for the punctured barrier to maintain the time dilation inside, especially if it wasn't even known to Zoraal Ja since he thought 30 years passed on both sides.