Despite an engineering preference for the push release feature, marketing is currently comfortable with “the way it has alway been done.” It loads and releases just like a snap-button.
Perception – Most compare a snap-button area to the area of a SEEkeyMD. The space used for a SEEkeyMINI is found when laying them on top of a current tray which has snap-buttons.  In a nut shell… people want the same footprint as snap-button trays.
The device capture area, speed-to-market, logistical and plastic reduction is superior to current methods.