I’ve seen this in several reviews that using the controls on The Headphone causes “painful” squishing in the ear. I have not found this to be the case.
The controls are best and easily activated by securing the right headphone with your thumb and middle finger, while using the tip of your index fingernail to press the buttons. (I keep my fingernails trimmed short – YMMV if long.)
Bragi marketing should reach out to reviewers who experience difficulties with the controls to see if they can be persuaded to update their reviews.