More like "man seeks easy publicity exploiting misbeliefs".
The AirPods stay in place better than my Powerbeats. They just won't drop, nor move. Same experience for my girlfriend.
Your girlfriend doesn't drop nor move?

EDIT: dammit, someone beat me to it.
Back to airpods - The issue is the airpods are hard plastic. The fit and movement will be very person-specific.
For some, it will fit perfectly and not move at all. For some, it won't fit at all. For some, it will fit but not tightly and can fall out. For some, it will fit too tight and cause pain.
For me personally, with the earpods, if I put them in like they are in the pictures, they are too loose and fall out. With the Bose earbuds, I use the L-size tips, so I guess my ear canals are larger than normal. If I jam the earpods in there, they can stay, but it begins to hurt after 5 minutes. Also, if I chew or move my jaw at all, they call out. Needless to say, I hate the earpods and I hate that shape of earbud.
Apple says they designed these to fit as many people as possible, but by the very virtue of them being rigid, they cannot possible fit even close to 100% of people. This is why silicone earbud tips are so good, by being non-rigid and including different sizes in the box, they can fit close to 100% of people.