The article states something that a lot of us yoga practitioners already take for granted:
"Yoga is for people in good physical condition."
If you're overweight and/or in poor physical condition, yoga is not for you, at least not at first.
"Yoga is for people in good physical condition."
If you're overweight and/or in poor physical condition, yoga is not for you, at least not at first.
So while it's true that people in poor condition shouldn't do yoga, there are still risks to people in good condition.
Exercise is important for everyone's health, but the fact remains that the human body is poorly cobbled together and still not well-understood by science. Do what you can to help yourself stay healthy, but there is never a zero risk of critical failure.
In a yoga class, the instructor can regularly instruct people to do things that are inherently dangerous (even if they aren't painful.)
Pushing the risk onto the students is not particularly helpful. The student has placed (or misplaced, depending) their trust in the instructor not to hurt them. It's the instructors job to make sure they don't get hurt, including not having them do inherently dangerous things.
You'd be surprised how much science understands about how the body works.