Well the attached article adds nothing but amateur postulations
From the clear pictures I have seen of the engine fan there is no significant damage.
Engineers do not know what loads will break the mount, they only know that at a prescribed load level it won't break (there is a difference)
I'm not a fan of concentrating on the obvious damage to a dual mount link and ascribing it as primary with a wave of the typewriter as fatigue. It is entirely possible it is secondary to the other side as primary.
So what did happen on the other side??
Yes the design is relatively failsafe as it protects the wing box while allowing the engine to fall away resulting in less thrust, less drag and a redundant hydraulic system left to fly the aircraft