Just because they haven't done something in the past doesn't mean they won't in the future. China has been providing material support to Iran both in terms of intel and military hardward, so it's not outlandish to be monitoring and planning for it to continue happening into the future.

China has sold military hardware to Iran in exchange for oil. They also proposed their help for a de-escalation plan to Pakistan if needed, letting regional powers handle the issue and never presented themselve as the only solution (They did the same for Turkye and the Ukraine war).

I can name plenty of flaw and issues i saw in China, plenty of foreign policy i find dangerous, but you people make me want to defend them every time with your uncharitable opinions. China "do nothing, win" strategy is even true on the internet ffs.