Umm.. There was never single point of failure. Just single point of delay. It's not as if there are perishable goods on those ships.
What do you think they use reefer containers for? Container vessels often have loads of perishable goods on them. Though it's often biased one-way. E.g. Latin America to Europe? Loads and loads of bananas. Norway to anywhere? Salmon!
The bananas are green when plucked; they ripen during the voyage.
https://www.theguardian.com/environment/2021/mar/26/at-least...
The vessel is completely filled with containers. To discharge a container you need a crane. Further, some perishable things, that's why shippers have insurance.
Not sure what you mean with 'dismantle' though. It's rather obvious you never seen such a vessel up close. It's nor like a pc. If you want a specific container, it can often be a complete hassle to get to it. This as loads of other containers are stacked on top.