I've actually found a coherent (negative) criticism on Jingli.u's quest!! Wow!! It's in Chinese on weibo

This user said her behaviour is very double standard. That she criticises and condemns both Dan Fen.g and Yingx.ing severely for trying to bring back Bai.heng in any way, but then she goes to visit Bail.u and tells her that seeing her is better than any medicine. And the user is right! That's exactly why they did what they did (well, I've always been of the opinion that Dan Fen.g had more reasons going on based on the in game information), so why the insistent asking to Blade?

The user also says that Jingliu doesn't really behave at all like a friend, that while very believable that she loved and was close to Bai.heng, it's hard to believe the same thing when it comes to Yingxi.ng and Dan Fen.g. They said that nowadays we still see instances through the Xianzhou in which they are both spoken about in positive terms, that Yingxi.ng is talked about as a legendary furnace master, and we can even stumble upon good opinions on Dan Fen.g, but that Jingli.u never shows that kind of understanding for people in theory she loved, knew personally and was close to.

I don't agree entirely with this, I do think there was a lot of fondness from Jingliu shining through despite everything (especially towards Yin.gxing, in my opinion), but I do think it's a somewhat fair criticism. I loved how they mention that despite everything the Xianzhou's view on Yingxin.g and Dan Fen.g isn't just negative. They're right, and it's a detail I love.