I also found that interesting, found a comment on Reddit thread linked here: submarinecablemap.com's FAQ *Are the submarine cable paths shown the actual route

I also found that interesting, found a comment on Reddit thread linked here: submarinecablemap.com's FAQ *Are the submarine cable paths shown the actual route taken by the cables?* No. The cables routes on our map are stylized and do not reflect the actual path taken by the various systems. This design approach makes it easy to visually follow the different cables and the points at which they land. In real life, cables that cross similar areas of an ocean, take very similar paths. These paths are chosen via comprehensive marine surveys which select routes that avoid hazardous conditions that could potentially damage a cable.