Better than slow sedimentation rates explains it.
The referent is missing from the sentence fragment. To who is it a better explanation? Not to most educated and trained working geologist. They have looked at the theory and abandoned it on many grounds.
To a group of religionist who want the world to conform to a pre scienctific world view and don't want to understand science that flood hypothesis seems on the face of it more reliable and certainly it's much simpler. No measurements or mathmatics are required, nor chemical analysis etc.
Science is an interlocking locking set of disciplines. Physics uses math and chemistry can't conflict with physics, nor can biology conflict with physics and chemistry and thus they inter support one another.
A group of religionists is fighting science in order to hold to their emotional beliefs. But so far you've offerred no science just rationalizations that allow you to dismiss scientifically observed and verified findings.
You and your co religionists have faith in your view of the Bible as do Mormons, Muslims, etc have faith in their religions. None of that is science and none of those religion's beliefs can overturn science.
There is no factual basis for your religion, any more than there is a factual basis for Islam, or Mormonism.
lfen