I pull the straps outward each time I put my helmet on to spread it open a bit so it is easier to put on. It keeps it from dislodging my earplugs and folding my ears so much. I don't think anything you would do with your bare hand would simulate the forces in a crash as far as testing those anchors. If they are failing from guys tugging on them, that is really bad.
Airoh is the latest, Leatt as well, Fox has had straight up strap failures. It seems to coincide with a change in where the helmets are manufactured, I bet you can guess which country seems to be the problem there.