Hyperwarp
Captain
or YJ18,
The tubes are big enough to carry any types of China antiship missiles
Huh?
So why send a 094A? 094A might be able to fire YJ-18 from the torpedo tubes but not the missile tubes. Those tubes are there to carry JL-2 variants as a nuclear deterrent. Being nuclear deterrents, the job of the 094A is to stay hidden as long as possible. The last thing the crew of a 094A would do is show itself. That does not happen with SSBN of any country unless they got caught.
Besides didn't China strongly deny sending any troops to Syria in the 1st place. Syria has something like 2.5 billion barrels of petroleum reserves - . There are others with a lot more. If it was about Iran, that is a different story.