Mindful meditation, a technique very popular among big tech HR departments that want alert and present employees, is about being alert and present. There's many techniques and first hand stories of people achieving states more similar to like the one in the article with more let's say "older" or simpler and more basic meditation techniques that don't require too much mental gymnastics. Bodhidharma staring at a wall comes to mind.

Meditation is a wide range of practice.

If your goal is to be aware of yourself in the immediate, to feel things directly, then the hypnogagic state can work well. Obviously your mileage may vary.