The only item the flight deck crew has for the doors is indication of open or closed (outer handle unstowed on some doors). There is no mechanical or electrical system installed that remotely locks the door(s) from the flight deck (at this time). Any PA announcements related to arming or disarming the doors is related more for the emergency slides.

The size of the inner door handle is provided to allow for leverage to break the seal when unpressurized (if sticky), and to actuate the internal mechanism for engaging/releasing the locks and pins. Depending on design, the door may also move in some direction relative to the opening before being clear of any stops.

The force required just to actuate the mechanical locking system when the door is under load will be greater than can be applied to the handle irregardless of the force that will also be required to unseat the door to open it.