The purpose of most locks is not to protect from entrance, but to make an unauthorized entry evident, to bringing unwanted attention or require committing a more severe crime than breaking in.
You might just kick those door out, but that will likely alarm someone and certainly Dave will notice the door is missing. Dave could be forced to open the door, but that brings severe criminal charges against the intruder. Even merely damaging the door counts as property destruction, which in many jurisdictions(1) is already a more serious crime than merely stealing some stuff. Maybe you have noticed: the door is self-locking and always require a key to be opened from outside, which is a protection on itself in physical, psychological and legal sense.
If this lock is popular enough, it will be picked. If someone advertises to you a lock as “unbreakable”, you may be sure it’s bullshit. Not due to some theoretical impossibility, but because the existing experience, which should be known to anyone interested in the subject — so they are overoptimistic ignorants or liars. Yale, the creator of the common tumbler lock, realized that a long time ago and departed from the pursuit of unpickable solution. And this Abloy is not meant to be unpickable either: it is only meant to offer certain level of security. Much higher than your average lock of 2021.
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(1) Dunno about Australia.