User blog comment:Hawki/Scavenging for a Feeling/@comment-250398-20180726212341/@comment-31277203-20180727001812

Oh right, forgot about that part. Well then it'll have to depend on what the Nerazim did as Amon's zerg forces attacked the planet. Remember that by the end of Amon's Reach mission, the zerg population on Shakuras was only 50 million. It's quite possible the Dark Templar didn't want Ulrezaj to fall in Amon's hands, as there's no telling what could then happen. In addition it wasn't until after the 1st Shakuras mission that Vorazun decided to blow the planet, which means prior to that the Dark Templar wanted to do something else with Ulrezaj. In that regard I can see your point of the derelict ship was intended to smuggle Ulrezaj off the planet, but I'm still unsure. Given how powerful he was, it'd be necessary to ensure he would never be released from the crystal, which would mean that protoss carrier must maintain contact at all times.

Not all Khalai protoss were with the Golden Armada when Amon corrupted the Khala, which means some would have still been on Shakuras. Sure, the Dark Templar might have cut their chords to server the connection and that'd then make sense for why we saw a Khalai carrier in Scavengers, but then it begs the Q as to how he was able to escape the crystal in the first place.

Personally I just feel right now we don't have enough info at this moment (like Shadow Wars part 1). It's better just to wait until at least part 2 before we can try to piece things together.