I'm actually curious in hearing potential problems or ( if it would be plausible) a raw estimation of duration ( since you mentioned 20 weeks, that's a huge timeline).
Edit: I don't know anything about this subject. So it's interesting to learn/ask some stuff I wouldn't encounter otherwise.
He didn't estimate timeline, but it would take longer than a weight/crane operation. If the situation was much worse (partial capsize, somehow deeper entrenched on the coast), this might be a more plausible option. With the containers in an accessible location, it should be faster to organize a weight redistribution campaign instead. Just thinking about the logistics of safely building and deconstructing the dam made his head spin a little bit.
https://www.youtube.com/watch?v=Yzdxnuk-2pM
Its way longer than that - the other thing is to think about the economic ripple effect - short, mid and long term.
Also its important to note that the evergreen is now out of commission for at least a year.
It will likely go to another closer port, all cargo offloaded to other ships, then it will go into dry-dock for in depth inspection for fatigue and micro-cracks in the hull and infra...