Gifting Xiulan TRF would be a pity present at this point, I think. It was an amazing art when we got it and it kept being amazing even in early Green, but it's reaching the end of its potency. If we want to give her a wood art, we'll have to actually spend some time to find a fitting successor or an alternative, not merely give her Ling Qi's leftovers. The girl has enought self-esteem issues already.
That said, I'm not against getting Xiulan to turn down the recklessness... but is it Ling Qi's place to do so? Won't it just reek of hypocrisy? Ling Qi, who challenged Sun Liling, who challenged Cyan Spirits, who visited a Moon Rave, who took a knife to the throat. She's in no position to criticise anyone about dangerous feets. No, I think it's the place of her immediate family to remind her that power doesn't matter to the dead.
Also, I doubt Xiulan won't be able to find compatible arts with similar insights if she wants to, maybe something about peat fires that can smolder for a very long time and then suddenly blaze? But she has to want it herself otherwise she'll never cultivate it, and for that she needs to be satisfied with her power. Hopefuly, going home and comparing to someone other than LQ will give her an opportunity, especially if her house is ready to praise her and spend resources on her.