Cargo ships have done serious damage to infrastructure in the last few years. The giant ship stuck in the Suez was just an example - giant ships have gotten stuck in the Chesapeake Bay, Rotterdam and elsewhere.
The same week for major disasters would be a coincidence but I'd guess minor stuff is happening constantly.
The main thing is that shipping companies have been taking advantage of the way maritime law limits their liability for their behavior by scrimping on maintenance as well as using ships essentially too large for the waterways they travel in.
How often do cargo ships run into infrastructure? Is this just a coincidence that it happened twice in a few weeks?