I came across it via this great Twitter thread, which I think makes the critical point:
Mindfulness was selected as a school-based panacea because it essentially costs no money to implement, and is focused on individual actions.
Then I saved it as a link post on my blog, where I elaborated a bit more on my agreement with that Twitter thread. I don't think mindfulness itself is the problem, more the way schools and employers try to fob off concerns about stress + overwork by going "oh well that's your fault for not being more mindful."
On the internet, everyone knows you're a cat — and that's totally okay.