I... genuinely don't know. I'd like him to talk to Zhao Yunlan before that final mission, but it's just not how Shen Wei operates. (and I just want all the options for fixits. Including post-canon Zhao Yunlan pinning Shen Wei down and finding the Guardian equivalent of veritaserum)

I think it was the right call not to mention it earlier though, because Zhao Yunlan could not have been Kunlun effectively with that in his head.