Yes.

Or not having your plant destroyed by the biggest Tsunami in recorded Japanese history, much larger than the size they planned for when they built the plant.

Or upgrading the seawall to the size mandated after scientists found out that Tsunamis of that size could actually happen, despite having no historical record of them. One of the reasons TEPCO was culpable.

A sister plant of the Fukushima plant actually survived a slightly higher crest and was even used as a shelter for Tsunami victims, because one engineer had insisted on the sea wall being higher.

German plants for example, despite facing no immediate Tsunami risks, have bunkered and distributed backup generators as well as mandatory hydrogen recombinators. Any German plant at the same location would have survived largely unscathed.

A larger seawall can still fail. Better to put the generators on a platform. Simple and cheap.

Another backup would have been a pipe leading away from the reactor, where one can, from a short distance, pump water into it and it would cool the reactor.