As they say, it’s hard to adjust it optically by moving the lenses because there’s a wide range of values that give a focused image - but the wrong values will result in nausea over time.
Even with pancake optic artifacts, just that setting alone makes a huge difference in don't feeling dizzy in rapid movements.
The problem is it takes a second or two and it fails.... Often, so you need to repeat the (take on and off). It makes development and multi person demos into a pain of "put it in and off again it will work"
For now only expensive headsets have the hardware for this. The solution proposed in the article works with the hardware in more affordable headsets which makes it intriguing.