Hm, I feel like this study does actually fall into the latter "meh" category. Sure, it is great to have the information what molecules in particular control the stomata to open and close. But we do already have so much knowledge of the intricacies of plant metabolism that this is yet just another tiny puzzle piece in the grand scheme of things. So they try to sell their research here as leading to much more open research questions, but I doubt that they actually found any actually new compounds that no one has ever found before.